Lucy has the largest breasts of any recurring female character, and believes thatBuxom Is Better. During a "Freaky Friday" Flip where Gray and Lucy swap bodies, Gray notes that Lucy seems to be suffering chronic back pain, a common side effect of having large breasts.
The first time Natsu barges into Lucy's house, he catches her in the shower. Lucy goes into Pervert Revenge Mode, trying to hit Natsu with a flying kick... and Natsu blocks the kick, saying her combat technique sucks.
When Natsu faces off against Gildarts, it's obvious that Gildarts is way out of Natsu's league. Finally, Natsu provokes Gildarts into showing how strong his magic is, and the full power of just Gildarts' Battle Aura is literally earth-shattering. Natsu concedes defeat without even throwing another punch.
In Assassination Classroom, Karma doesn't bother cramming for the Math final. Karma then learns the hard way that confidence and acting cool are no substitute for studying.
The other plot of the manga besides murdering Koro-Sensei is the Class-E system where failing students are purposefully segregated into a single "classroom" (a run down building far away from the actual school), bullied and tormented by both students and teachers (which is engineered by the chairman of the school) and automatic expulsion at the end of the year if they can't raise their grades above a certain threshold. The students are also not taught part of a certain subject matter before an important test because Koro-Sensei had been teaching his students too well. So, what would happen if word of this system gets out? National. Public. Outrage. Asano Sr. is forced out of his position as chairman in disgrace near the end of the manga.
The Japanese government and Self-Defense Force knowingly placed an Eldritch Abomination inside a school as a teacher (a really good one, though) and ordered a class of 15-year olds to kill it. When this gets out to the public as well, they are horrified and disgusted and, while we only see the backlash against the school for allowing it, it probably ended a few political and military careers as well.
So, it turns out that taking on a heavily-armed unit of former Russian Commandos armed only with an ax isn't that good of an idea and Infant Immortality doesn't exist. I'm looking at you, Hansel.
For that matter, the rank-and-file thugs of the series attempting to take on Special Forces-quality groups like Hotel Moscow or Gray Fox usually ends badly for them. Even when Roberta, who has been seen effortlessly wiping out huge groups of Roanapur's criminal element, takes on the Gray Fox unit, she manages to kill most of them but very nearly dies in the process, losing an eye and a couple of limbs.
While Blitz Stanford, an enormous neo-Nazi is extolling the virtues of his enormous Luger, Revy takes the opportunity to reload and just shoot him. Turns out an Ax-Crazy assassin like Revy doesn't believe that Talking Is a Free Action. Just before she kills him, Revy even asks "were you trying to sell me the damn gun?"
Lotton The Wizard, who gets shot out-of-hand while attempting to make a big entrance. Luckily, he was the only one who thought to wear a bullet-proof vest.
In one arc Revy sees a group of kids playing cops and robbers. Revy then has one of the kids use a toy gun on her just so she can show them just what really happens to a person when they die after being shot. Not as overly dramatic as they pretend it to be.
Revy and Roberta's fist fight isn't glorious nor intended for fanservice. It was as brutal as you'd expect from two trained killers.
On that same note, expect some bruises and swelling in this series when people get punched in the face, not just standard anime scratches. Even when Revy punched Rock in the face during a moment laden with sexual tension, his face swelled up and bruised. Several episodes later, the bruise is still there.
In Black Cat, Train is falling off a building and Rinslet jumps off to catch him, ending when Rinslet comes to a sudden stop at the end of the rope — and actually does tendon damage to her arm. Turns out inertia matters after all...
Tamura begins crossdressing in Bokura no Hentai so he can be with his straight crush. In many manga the straight protagonist crushes on a cute Wholesome Crossdresser and after humorous hijinks he admits to loving him. The boy Tamura likes does end up having a sexual relationship with him... However he won't even let Tamura touch him outside of drag and expresses disgust towards him being gay. It's not because he's secretly gay either, he simply doesn't swing that way so actually it's just a form of pretending. In another point that's rarely broached with crossdressing characters, Tamura begins to undergo puberty, which eventually causes the boy in question to dump him, since Tamura is now having a harder time passing himself off as a girl.
Carnival Phantasm: When the contestants of the Holy Grail War get randomly selected cars, Lancer first celebrates because he got an awesome dragster. When the race starts his dragster takes off at incredible speed... until it reaches a curve in the racecourse.
Lancer: My GaeBol car is awesome! The speed is just incredible!
Rin: Hey Archer. Did you know? Dragsters... can't turn. (Lancer crashes)
Sending a girl who's never experienced war for sixteen years out into a fight is a bad idea, especially if she's been tortured and suffering a complete mental breakdown.
"Those who don't know history are doomed to repeat it"
The Mana users never experienced war and discrimination despite calling themselves a kind without them, which turns them into a Hypocrite as an entire species. It doesn't help that their creator is also a Control Freak who never taught them about why war and oppression are bad things.
On the other hand, the Dragons are descendants of an apocalyptic war and understand that War Is Hell and oppression is wrong, creating the very utopia that Embryo wanted all along.
Also, Tampering with the Seven Sins Of Science can backfire on you, even regardless whether or not you expect or try to escape the consequences.
In the first chapter/episode, Kouji did not think that Falling into the Cockpit of a huge, dangerous war machine was a bad idea. Needless to say, it was. He trashed half the city because he kept punching random buttons while he tried to figure out how to make it work. Said trashing included playing baseball with cars -with the driver inside-, and smashing a school to pieces. When Sayaka showed up, Kouji began to cry out of relief.
The anime has Kouji come out a bit better, but not much. He nearly gets his head cut off by the cockpit glass shield, blew up his grandfather's manor and remodeled part of the landscape, and almost stomped his little brother Shiro flat. And this was after Shiro had warned Kouji not to try anything.
No Endor Holocaust gets deconstructed several times. It turns out that, when two Humongous Mecha duel in a city, there's a lot of damage. Buildings crumble down and catch fire, lots of people die, and the survivors blame the heroes for most of the destruction.
Kouji and Sayaka were a Battle Couple whose Belligerent Sexual Tension made them highly ineffectual in battle. The Dragon, Baron Ashura, exploited this in an episode where Kouji got badly injured because he got a serious fight with Sayaka, and she refused to fight alongside him.
In episode 48 of the anime, Boss cajoles/threatens Professor Yumi's assistants into building him a giant robot made with a box of scraps. He wanted a mecha that was more powerful than Mazinger-Z itself. What he got instead was a Deconstruction of the Humongous Mecha: Boss Borot is goofy-looking, slow, clumsy, heavy, breaks easily, takes ages to stand up if it falls over, and lacks anything remotely useful for a weapon. The scene includes Boss asking for all Mazinger's weapons, one after another, and Morimori explaining every time that they would not work and Mazinger can only get away with it because it is powered by Phlebotinum and Made of Indestructium (that Boss' robot is not). When he asks for a Rocket Punch, Morimori explains that anything like what Boss wants would shatter on impact. Because, you know, it's a missile.
An episode of Cromartie High School has Mechazawa destroyed and rebuilt as a Cool Bike, complete with missile launchers. Kamiyama uses Mechazawa to save a young woman who is being harassed by some thugs, only to immediately be arrested for property damage. Kamiyama attempts the same thing a few episodes later and purposefully tries to avoid any Collateral Damage, but still ends up being arrested on the grounds that he doesn't have a motorcycle license.
One of the main reasons Minato Namikaze was so deadly; due to his speed he made speech NOT a free action.
Konan prepares to give a rant on how Naruto is the bridge of peace in the middle of a battle. Tobi doesn't even let her finish her sentence.
A relatively subtle example shows up with Sakura and Naruto's contrasting shortcomings early on. Sakura gets good grades in class, and is the only one able to actually answer the seemingly impossible questions in the first stage of the Chunin Exam, and ends up looking down on Naruto, last in his grade. But in the Forest of Death, Sakura's lesser combat ability proves a problem when Naruto and Sasuke are incapacitated. Similarly, while Naruto's very good at fighting despite being Book Dumb, some of the things he failed to learn in the academy come back to haunt him in his training; he regrets not paying more attention in class when trying to learn how to focus his chakra for his Rasengan training.
Early in the series, Naruto is poisoned in battle. The poison is spreading slowly from his hand and Sakura surmises that the best course to take would be to use a surgical incision to drain the poisoned blood. Since the team would have to go back to the village and abandon their mission to do that properly Naruto violently stabshishand with a kunai to quickly drain the blood (and also as a dramatic gesture in a vow to never again be paralyzed with fear like he was during the fight)... and then goes into a panic attack when Kakashi points out that he's probably gonna bleed to death from a wound like that. Fortunately the tailed beast within him easily healed the wound.
Post-Pain Arc, Naruto has been running himself ragged with him unable to talk to his adopted "grandmother" Tsunade due to her coma in the ensuing invasion. He learns Sasuke has become a criminal and attacked a fellow Jinchuriki for Akatsuki. He learns that his friends, even Sakura, have given up on bringing Sasuke back to Konoha. Then when he's told there will be War on top of everything... he can't take it anymore and passes out. A realistic depiction of a Determinator when pushed to the limit.
What killed (or crippled him for the rest of his life) the legendary Madara Uchiha during his battle with Hashirama? An epic ninjutsu clash? Nope... a stab through the back.
Similarly, After he was revived, Madara managed to become fully human, while this gave him full autonomy over his Rinnegan and made him a deity in power, a stab to the back from Zetsu injures him once more, allowing the Greater Scope Villain to reincarnate from his body.
In one of the Shippuden endings, Naruto uses Konohamaru's scarf to pull him while fighting, instead of ignoring it.
Zoro suffers from grave injuries that put his life in danger — as usual. But, unlike the other times where he has an Unexplained Recovery and the injuries are usually never mentioned again, one arc later Zoro tries fighting and his wounds cause him to be temporarily paralyzed. And then two arcs later, even after resting and being treated (by Perona, believe it or not), his wounds re-open when he tries to fight and move, resulting in him getting his ass kicked by Apes. He muscles through them some (small) time later — after they copied his skills and called out the toughest one of them.
After being defeated by Crocodile for the second time, Luffy rushes to confront him again only to pass out from blood loss a few minutes later. He does recover, more-or-less, after a few minutes of sleep.
Luffy put everything he had in defeating Lucci to the point where he couldn't move afterwards. Unlike the other arcs before, however, Luffy and his crew are still in danger despite all the most powerful fighters being defeated and the marines nearly kill Luffy became he is too weak to move when they aim their cannons at him.
Characters having to fight through grievous injuries is also brought up in the Arlong arc, where Zoro is at a disadvantage in his fight against Hachi due to a massive chest wound inflicted on him by Mihawk that was very amateurishly patched up. Through he does eventually win the fight, Hachi attempts to attack Sanji later on and almost succeeds in taking him out, only for his wounds to open up again at the last second, taking him out of the fight before he can do anything.
Luffy himself once tried fighting a man who could produce and attack with deadly corrosive poison. Seeing as how only Mooks had been poisoned by Magellan (the man in question) at this point, the audience and Luffy himself thought he stood a chance from the moment Luffy launches a Jet Bazooka that actually DROPS the hulking Magellan... but no. Touching him with that attack and many more poisons launched at him nearly kills Luffy within just 2 measly episodes of starting the fight.
At Marineford, Luffy is willing to give his life to save his brother. Too bad for him that he is one of the weaker fighters in the war on top of the injuries he gained from going to Impel Down. He is mercilessly knocked around by the marines and the Warlords.
Kizaru: You have to have more than just courage. Willpower alone means nothing without strength. Strawhat, without enough strength, you cannot save anyone no matter how hard you try.
Giants Dorry and Broggy had been fighting for almost 100 years with their weapons and fists: it turns out that, after 100+ years, even with constant maintenance, weapons will eventually break. This was a rather joyful use of this trope, however, as everyone had thought Dorry had been killed.
At the start of the Fishman Island Arc, Sanji (Who had spent the last two years on an island full of only Gonk transvestites) suffers a nosebleed every time he sees a genuine woman. While this is comedic in every other anime (and every other time in this one too), the frequency and severity of the nosebleeds caused near-fatal hemorrhaging at one point, requiring some immediate blood transfusions. Furthermore, Sanji has a particular blood-type and while fishman and humans have the same blood, a law forbade the transfusions due to the long history. A more minute example occurred at the end of the arc when Jimbe offered to give blood to Luffy, who saved the day. When pointed out about the law, he reminds the people he is still a pirate.
After being pushed in his conflict with the Minks, Jack the Drought attempts to attack the Mink's home, the giant elephant Zunisha. Since he was attacking something big enough to have a sustainable ecosystem with little more than cannons, it hardly had an effect. The only reason it almost worked is because Zunisha was sentenced to not fight, even in self-defense, unless commanded. Once the order is given, Zunisha takes out Jack's entire fleet in a single attack.
And while Jack is a fishman monster with a one billion berry bounty and powerful enough that it's warranted, he's still a Devil Fruit user. When Jack's ship sank, he sunk to the bottom of the ocean, unable to move. Even though he can breathe underwater, being trapped with no way out means he'll eventually die.
Checkmate from Ultimate Muscle has a similar problem. While injuries that don't affect his body mechanically don't slow him down, he has an unfortunate tendency to collapse from his wounds at the worst possible moment because he never knows when he's too hurt to keep fighting.
It shows the consequences of having young children with no military background piloting Humongous Mecha. By the end of the show, two of the young pilots suffer severe psychological breakdowns, one ends up crippled, and another is violently killed while pulling a Heroic Sacrifice.
The aftermath of repeated battles within city limits is that, by the end of the show, Tokyo-3 has to be evacuated due to the sheer amount of property damage.
The fight with Ramiel (a gigantic Crystal Angel) ends with them blowing a hole in it, and leaving its corpse on the city. For the next three episodes, cranes and other crews can be seen disassembling the corpse.
Long before Evangelion, Zambot3 showed how kids being pilots of a Humongous Mecha can actually be psychologically straining, and how immaturity can lead to deaths. Kill 'em All indeed. Also, cities do not get magically repaired after getting smashed down during a battle between giant robots, and often the cast has to fight on the ruins of a city destroyed in an earlier battle.
The Demon World Tournament subverts the usual formula. The main characters and villains aren't placed on opposite sides of the bracket (in stark contrast to this happening with Yusuke and Rando in Genkai's tournament, and Team Urameshi and Team Toguro in the Dark Tournament) and end up facing each other in the quarter finals. The main villain defeats the main character, but expends so much energy doing so that he loses to some no-name in the next round, who then loses to another no-name in the round after that, eventually leading to a minor character taking the win.
In a minor part of the Dark Tournament arc, the giant robot that can't feel pain can't tell that it was actually damaged... until it's under the opponent's control already. Compared to Hiei whom buckles in pain when he tries to use his heavily damaged right arm, it also means he can't over use the arm and risk completely.
In the first episode, Kenshin dodges Kaoru's attack and lands on some wooden crates that break apart when he lands because crates aren't built to hold a person jumping on them.
Kaoru fights Gohei, who's several times her size and using a katana, with a bokken. She's quickly disarmed and nearly killed. Kenshin lampshades this.
Kenshin: It's rather reckless to use a wooden sword against a real one.
Sanosuke's Zanboto is so ridiculously big and heavy that Sanosuke can only swing it in two, easy to predict ways. Its size also makes it impossible to maintain its edge, so it has become dull.
In an early arc, a group of elite warriors are done in by a gatling gun.
Gein's super Iwanbo gets destroyed because he couldn't tell it was damaged.
Sanosuke's ultimate technique, which involves putting so much force into a punch that it tends to fracture the bones in his own hand. His doctor is not amused.
Kyoto Arc's Big Bad Shishio Makoto immolated himself because he couldn't sweat and he overheated. While the actual Man on Fire part is an exaggeration, the overheating is a very real and potentially deadly consequence of anhidrosis.
Kenshin's smaller build means that, once he learns the Hiten Mitsurugi Ryu ultimate technique, he accumulates minor muscle damage. By the end of the series he's told that he won't even be able to wield a sword in five or so years.
Saito Hajime seems to evoke this trope constantly. His fights against Kenshin are very dirty, and he's willing to use any fighting technique he can get his hands on. He also forces Kenshin to revert to his old fighting style as an assassin, showing he's been hiding back for quite some time. Finally, Saito has one ultimate technique, with multiple ways of launching and aiming it. In the end though, he's just setting up a head thrust and it turns out that is the one place Shishio Makoto fortified against attack.
In Loveless, the Zeroes are a series of Artificial Humanswithout pain receptors with the idea that this would make them unstoppable in a fight. Soubi figures out how to exploit this by lowering the temperature of the area they're fighting in until the two develop dangerous hypothermia with no way for their bodies to counteract it.
Early in Outlaw Star, the crew blast their way out of a spaceport to evade space pirates, presumably causing hundreds of thousands of wongs in damage. Towards the end of the series, the crew returns and Gene is immediately arrested and thrown in jail for property damage and other laws he broke, and only gets out at all because the traffic controller had been found to be taking bribes.
In The World God Only Knows, Keima notices that unlike in a game, when an idol confesses their love to you, other people are generally not happy. In fact, they're pissed.
Freezing features beautiful girls who attack each other with sharp weapons. When their clothes get ripped apart, so do their bodies.
Played straight earlier on, when after dramatically ripping up their drafts of Money and Intelligence and throwing them into a river, Mashiro and Takagi run away lest they be caught for littering.
Also played straight earlier on in which after Takagi punches Ishizawa for insulting Mashiro, he gets suspended.
Toward the end, once Mashiro and Azuki's relationship comes to light, very few people are happy to hear it, there is a large In-UniverseInternet Backdraft, and this makes it more difficult for Azuki to get the lead role, since people think Mashiro might be favoring her.
Nozaki offers to give Chiyo a ride on his bike. Chiyo assumes this will be an intensely romantic gesture, until Nozaki reveals that they'll be riding on a tandem bicycle. Turns out that the common romcom trope of having two people riding together on a single-person bike is technically illegal under Japanese traffic laws.
The series is an Affectionate Parody of the Shoujo demographic, so in general there's a lot of instances of taking common Shoujo tropes and then demonstrating why they wouldn't work in real life.
In Azumanga Daioh, Osaka, of all people, pulls this when she wonders what Chiyo would do if she was kidnapped. Chiyo suggests that Tadakichi-san could come to her rescue, and Osaka mimes shooting him. This leads to this exchange:
Chiyo: So what should I do? Osaka: If this was a TV show, you'd use your genius brain to think up somethin'... and fight back against incredible odds... Osaka: ... and get killed.
In the episode of Soul Eater where Death the Kid first starts attending the DWMA, Black Star climbs up near the top of the academy building to deliver a Badass Boast to Kid... who's standing near the front entrance and can't hear a word he's saying because he's so far away.
Additionally, it is bluntly stated that Iono simply does not have time for all of those concubines, especially since she still does have to rule her country, and still likes going out to meet more women. So there is loneliness, infidelity, and infighting among the harem.
Mobile Suit Gundam 0080: War in the Pocket has a boy and his friends get excited about the Federation/Zeon war and treat it as a game. Then the boy befriends a Zeon mobile suit pilot and experiences it first-hand. For that matter, the Zeon pilot in question is a rookie looking to redeem himself after an embarrassing first battle. He's shown to be a good guy with even a bit of a heroic streak in him, and in the end faces the Gundam not out of orders from Zeon superiors, but in a selfless attempt to prevent a massacre. He dies fighting the Gundam despite his best efforts, as the Gundam is a superior machine and he is still a rookie pilot. Moreover, the story goes to lengths to show that the massacre he was trying to prevent had already been stopped without his knowledge, so his tragic death was entirely meaningless.
A number of times, the Mobile Suit pilots tend to desert because they're either tired of Amuro or tired of the war (especially Amuro in this regard). They're usually tossed into the brig for insubordination and desertion.
When Char first faces Amuro, Char's skill despite using a now-underpowered Mobile Suit rattles the novice Amuro as Char's been piloting Mobile Suits for a few years at most. Amuro just hopped in. Also, when Char realizes that the Gundam is too powerful for his Zaku's simple machinegun, his next encounter has him bring the bazooka, something that because a greater threat.
Char also shows that, just because the Federation now has a mass-produced Mobile Suit, they're still woefully behind skill-wise as he uses his Z'Gok to gut a brand new GM. On the other hand, the Federation knows that and go for the quantity over quality approach to overwhelm Zeon.
Both Mobile Suit Gundam SEED and Mobile Suit Gundam SEED Destiny have moments where the protagonists spirit away a female character from the other side to save them. Both protagonists get in trouble, though Kira (SEED's protagonist) gets off lighter because he's the Archangel's only Mobile Suit pilot. Shinn (the protagonist of SEED Destiny) does not as there are other pilots.
In Gundam Build Fighters Try, the Gunpla Battle Club is on its last legs due to this trope - just because Sei Iori, the protagonist of Gundam Build Fighters went to your school and ended up becoming champion doesn't translate into everyone becoming Sei. By the time the series starts, many people prefer to stay to the safer Gunpla Building Club, where their models don't risk getting obliterated by better opponents. This isn't quite a straight case, however, as the Plamo Club president was stealing the members from the Battle Club on purpose as part of his attempt to force the president of the rival club to join his instead of straight out asking her out on a date. And by the point the argument against Gunpla battling is made, new safeties and damage levels were implemented to prevent the Gunpla Models from being totaled every time after a nasty bout, which rendered the argument of the impracticality of Gunpla Battle moot because the steps to prevent the very thing the Plamo Club president was arguing against had already been taken.
There's also the reason for the damage levels in Gunpla Battles - someone came to realize that losing somewhere between $50 and $100 USD worth of work on the first round of battle isn't good for morale and brought in new levels to prevent such things from happening.
The show plays with this trope from time to time, when less badass pilots find themselves unable to pilot even the prototypes of the Getters due to the stresses of the G-forces.
Getter Robo Armageddon has a moment where the heroes are in the title mecha with Ganymede, the biggest of Jupiter's moons looming front of them. They unleash the mech's most powerful attack: Stoner Sunshine, on it. The attack does absolutely nothing to it.
Gunslinger Girl: After all the fighting, the dying, and the drama, the terrorist organization is eventually brought down by diplomatic means, the Social Welfare Agency is closed down by the government since they need a convenient scapegoat, a political shitstorm is raised over their use of little girls in their experiments, and Elizabeta/Petrushka does, in fact, die from cancer (replacing her limbs only allowed her to fight, it didn't cure her, after all).
The Excel Saga manga likes to delve into this often, compared to its far wackier anime counterpart (the tagline for the manga is even "What would happen if you tried to act like an anime character in real life?") One major example is Ropponmatsu I, a Do-Anything Robot stuffed so full of gadgets that her body is extremely heavy. When her creator is asked if he could create a body with the versatility of Ropponmatsu I and the weight of Ropponmatsu II (who weighs about as much as a normal human but lacks all the gadgets), he blows off the idea as ridiculous.
20th Century Boys has a scene where a skilled roboticist is brought before the Friends to build a doomsday robot. The Friends start talking about how all the classic Humongous Mecha tropes they want the robot to follow, only for the roboticist to explain in detail how something like that is impossible to replicate in real life (including citing the Square/Cube Law and explaining that there'd be so much movement just from walking that trying to pilot it from inside would cause motion sickness.) In the end, the robot that gets made is really just two robot legs on tank treads attached to a giant balloon.
When Goku gets injured in his fight with Vegeta, there are no Senzu beans available. He recovers at an impressive speed considering his injuries, but he spends a month recovering in the hospital before there are more Senzu beans. Played up even more in a filler arc during this, where Goku escapes the hospital and attempts to resume his training but because he hasn't properly recovered yet winds up injuring himself even more and immediately gets re-hospitalized.
Played with this at one point. Videl, fresh from learning how to harness her Ki and fly, is forced to sit a mission out when she's unable to see while flying due to traveling at high speeds without any form of eye protection.
Before his sacrifice against Majin Buu, Vegeta, being somewhat aware that in Dragon Ball Death Equals Redemption, optimistically asks Piccolo whether he would see Goku in the Other World. Piccolo then bluntly tells him (in so many words) "No. Unlike Goku, you've been a selfish, evil asshole for most of your life and this one selfless act will not make up for it. You're going to Hell when you die." And he did. Thankfully he got a second chance and was brought back to life when the Universe was on the brink of extinction.
Being a Super Saiyan may seem cool, but if you can't control the power that comes with it, it can essentially turn into Blessed with Suck as the effect it can have on your mind and body can bite you in the ass in the worst ways. With every new Super Saiyan transformation you either turn into a bloodthirsty sociopath hell bent on making your worst enemy suffer, significantly grow in muscle mass to the point where you practically can't throw a punch and move very slowly to the point at which you're defenseless, bring near total devastation to the world or burn through all of your ki in a matter of minutes and leave you powerless. Even if you master the Super Saiyan transformation doing mundane tasks can still be an issue. Case in point where in one scene, which laps over with Hilarity Ensues, where Goku and Gohan couldn't even hold glass cups without breaking them, even when holding them delicately. They then proceed to unintentionally casually destroy the entire kitchen in Goku's house just because they were in it!
Considering how strong the Z-Fighters are any mundane task is difficult. Naturally because of Goku's Super Strength even the lightest tap could send somebody hundreds flying of feet into the air... which was the case when Goku playfully slapped Chi Chi on the back and sent her flying out of the house, crashing through a tree and crashing into a rock. It's a good thing she's Made of Iron and only suffered a few bruises and cuts.
Being a Physical God or otherwise extremely powerful might make you close to invincible, but unless you're from a species like Frieza, Cell, or Buu who can survive without oxygen, you still need to breathe. Goku nearly died from Frieza drowning him, and if Namek exploding didn't kill Goku, him suffocating in space would have.
No matter how powerful you become, you can still succumb to illnesses. In the future timeline, Goku dies of a heart virus and in the main timeline, Goku is laid flat for over ten days.
Sometimes, you have to know when it's time to give up and live to fight another day. It doesn't matter how determined you are to win; if your opponent outclasses you in every way, willpower and determination alone can only take you so far and will ultimately mean nothing. Frieza learns this the hard way when his complete inability to give up, accept defeat, and swallow his pride not only leads to his downfall on Namek, but also his death.
Also, attacking at full force will tire you out fast. Even after Frieza reached his full power and was at least close to on-par with Super Saiyan Goku, Frieza burned through his energy so quickly that he wasn't even a challenge to Goku after only a few minutes of fighting this way.
During Goku's fight with Ginyu Force member Recoome during the Frieza Saga, Recoome realized Goku was a real challenge and brags about showing him his special move, the "Recoome Ultra Fighting Miracle Attack". When Recoome goes into his elaborate windup to prepare the attack, Goku just punches him in the stomach, stopping the move mid-action. Lampshaded by Goku, who points out how Recoome was so open to attack, he couldn't help himself.
Cell announcing that he will essentially destroy the world if nobody can defeat him at the Cell Games in 10 days on worldwide television gets the sort of reaction you would expect... the entire world is thrown into chaos as all of humanity panics in terror at the fact that the world is gonna end in 10 days. Thousands of people try to evacuate from cities worldwide and the world's Army is immediately sent to try and destroy Cell, only for Cell to destroy all of the army without breaking a sweat. And of course, this was the sort of reaction Cell was hoping for!
Goku's entire plan to defeat Cell hinged on Cell deliberately pushing Gohan into an Unstoppable Rage, thus unlocking his hidden power. Unfortunately, once pushed to that breaking point, Gohan has no desire to end the fight quickly and deliberately prolongs his beatdown of Cell, wanting him to suffer, something Goku failed to anticipate. Really, anyone who was in Gohan's shoes and didn't do the same thing after being pushed that far would have to be a saint.
Majin Buu takes what Cell done Up to Eleven. By the time he turned into Super Buu, he wiped out 80% of humanity and those who survive live in fear and in ruined cities. You then have the raise of serial killers like Van Zant who uses the opportunity to murder their fellow man because, "it's the end of the world, so I can do whatever I want!"
When Majin Buu, now Super Buu, shows up on the lookout demanding to face the fighter he was promised, Piccolo warned everyone to not provoke him in any way because they would surely die. Chi Chi walks up to him and slaps him for killing Gohan; he kills her without a second thought. Lesson is, just because you can get away with acting like a Tsundere around family and loved ones, does not mean you can with anyone else.
From the original series, it doesn't matter how much righteous fury you have, if you're tired and hungry after a long battle, chances are you're going to get you butt handed to you if you start picking fights. Something Goku learned the hard way from his battle with Tambourine.
Also from the original series, society all but breaks down after King Piccolo takes over, abolished all laws and freed all the prisoners. It gets even worse after Piccolo announces that he will destroy one city by lottery every year for the next 36 years. See where Cell got his inspiration.
Again in the original series: it doesn't matter if your skills are just as good as your opponent's, if you're a child and he's an adult and more experienced he has the advantage. Goku found out in his first Tenkaichi, when, in the final exchange, Jackie Chun played him like a fiddle to get him in a mutual flying kick, in which the longer legs of the adult Jackie Chun guaranteed a stronger and deeper kick than those of the still child Goku.
Gohan tried to take on the Androids on his own after just recently nearly dying and losing an arm. He's overwhelmed by the Androids and dies very horribly.
One of the supposed safe haven towns left on Earth has an amusement park that is constantly open and considering how loud amusement parks are it doesn't take long for the Androids to find and destroy it along with all of its inhabitants.
When Android 18 goes clothes shopping and after she finishes raiding the store of all the clothes she wanted with the "consent" of the store owner and employees, Android 17 destroys the store and employees inside of it. What, did you actually think they would let them live? Remember, they're programmed to hate all humans, no exceptions.
Trunks attempts at bum-rushing the Androids on his own only results in him getting his ass kicked so bad he ends up in the hospital for days in critical condition.
There are four major ones with Ed's automail. 1) Anytime it gets significantly damaged, he has to go back to Winry because he doesn't know how to fix it, especially if it's his other arm. 2) A version that was 80% lighter was also far more fragile. 3) When he traveled up north to Briggs, he nearly dies of frostbite because his two metal limbs conduct heat away from his living flesh. He also had to have it adjusted whenever he grew, as his real leg would end up taller than his automail leg. Fortunately (and unfortunately from his perspective due to him despising his short stature) this happens very rarely in the series proper. 4) Ed can't stand the desert since his automail gets hot enough to literally cook with.
During Envy's last battle with Colonel Mustang, Envy tries shapeshifting into the dead form of Maes Hughes, Mustang's best friend to fool Mustang, but it doesn't work. Mustang already knows that the shapeshifted character is dead, so Mustang simply blasts Envy without any hesitation.
There's also a double dose of this in why trying a Shape Shifter Guilt Trip is a very bad idea on someone who keeps their emotions on lock, it doesn't make Mustang lose his will to fight, it makes him pissed, and because of that, turns what might have been a quick, clean kill into actively torturing Envy to the point they were screaming for mercy.
In Girls und Panzer, the last team to join the Oarai tank crew is composed of three girls who have experience playing a tank game online. They learn the hard way that the tank doesn't operate as simply as the ones they're used to controlling in the game do, and end up accidentally reversing into the path of a shot that would have struck their team's flag tank.
The Hentai game turned Anime, School Days, deconstructs the Harem Anime genre by showing what could realistically happen when a male gains the attention of many females. It also shows what can realistically happen during a serious love triangle as well. None of it is good.
Eren is a huge smack in the face for the standard Shonen hero tropes. Full of Hot-Blooded rhetoric and a passion for vengeance, he rushes headlong into action without any consideration for the abilities of himself, his allies or his enemies, and constantly puts himself and others at risk. No wonder his own habit of giving rousing speeches at the start of the manga comes to a sudden end when he himself suffers the horrors of fighting a Titan with hot-bloodedness. Thankfully he's learning from experience and adopting various strategies to fight Titans now.
Just because mankind is facing extinction doesn't mean it will magically forget all its interpersonal and political issues and become fearless heroes. Lampshaded by Eren, of all people, who remarks that before the Titans appeared humans wrote a lot of stories about uniting in the face of a greater enemy, and he found them ridiculous.
The Survey Corps wield absurdly sharp swords to fight the titans, but also have to carry roughly a dozen replacement blades because the same properties that make them so sharp also make them very brittle and prone to dulling.
The Titans are terrifying, and inflict horrible deaths on their victims, so it's all but impossible to avoid being frightened of them. It's nicely shown near the beginning of the story, in which Hannes, faced with the choice of saving Eren and Mikasa while leaving Carla behind, or staying and letting the Titan eat them, considers killing the Titan so he can save all three, but panics at the last minute and decides to escape with the kids. Carla tries to Face Death with Dignity, content with the knowledge that her children will be safe, but breaks down and can only cover her mouth to prevent the others from hearing her screams.
Speaking of facing death with dignity, actual Heroic Sacrifices are difficult to pull out in real life. Especially when the sacrifice realizes that being slowly digested by theTitans isn't a quick and dignified death. Even for those who are willing to sacrifice themselves, the act is considered by others to be selfish and insane because their loss would deprive the Survey Corps of a talented and experienced soldier, who cannot be easily replaced by fresh recruits.
This show also shows why it's not a good idea to have a Living Emotional Crutch and the dangers of Undying Loyalty; when Mikasa believes Eren has been killed, she has a mental breakdown, which causes her to recklessly throw both herself and her squad at the Titans, resulting in many of the soldiers under her command being killed. Similarly, when Eren is kidnapped by the Female Titan, Mikasa loses herself in anger and tries to kill it—which, if not for Levi, would have gotten herself killed and allowed the Female Titan to escape. Furthermore, Levi's action to save Mikasa results in him being injured, which puts one of humanity's best soldiers temporarily out of commission.
For instance, several slice-of-life animes feature a high school club that doesn't serve any real purpose other than as a hangout for the main cast ( the S.o.S. Brigade, the Neighbor's Club .) However, when Tomoko attempts to found one of these in episode 10, her application is promptly returned by the student council with the note "Rejected: Club Purpose Unclear."
It's also shown later what would've happen if her club request was accepted. Tomoko is sitting alone while the other club members are having fun. Even in such a club, being distant and quiet won't make you any friends.
A note to Usagi Tsukino: when you're sentenced to Standing in the Hall as much as you're implied to have been, your grades will suffer. Didn't Haruna Sakurada point that out to you that time you got a 30 on your test?
Usagi's panicking in battle is pretty much what would happen if you throw a teenage girl into life or death fights.
Also, being the queen of a Utopia and the savior of the world doesn't help a whit if you're Book Dumb and lazy; far in the future, Usagi still writes using hiragana (when most kids would be learning how to write kanji in elementary school).
Minako fought alone for a year in all versions, and she's a Broken Ace in all of them. In the anime it's relatively light and only really comes up when she sees she's the only Sailor Senshi not targeted for a Pure Heart Crystal (warning: while Played for Laughs, it's pure Fridge Horror), but in the manga she's a hell of Stepford Smiler that doesn't even start to recover until the Dream arc, and when the live action adds terminal illness to that she became a Jerk with a Heart of Gold and downright suicidal.
Speaking of Minako and the live action, in the end Minako decides to take the operation that has a 50% chance of cure her or will just kill her, so she'll be able to continue fighting and will have a chance to finally live. She dies on the surgeon table.
Cardcaptor Sakura: Meiling is strong enough to smash some park penguins with her fists, but it left her hands terribly injured doing so.
The first episode of Servant × Service ends with Lucy chasing Hasebe around the office after getting tired of his inappropriate remarks. The Stinger then shows them being lectured by a supervisor about how violence in the workplace will not be tolerated.
In Bokurano, similar to other deconstructions of Humongous Mecha above, the heroes cause a large amount of collateral damage in their fights (thousands of people die almost every time), and end up getting blamed for it, to the point at which some people try to kill them, and essentially succeed on Machi in the manga. It's also shown as a less than good idea to give a giant mecha that is more powerful than any Earth military technology to twelve year olds, some of whom are unstable or have ulterior motives, especially when they know they're going to die after they pilot. To make matters worse, according to Koyemshi in the manga, the main characters' group actually turned out relatively well compared to the one he and Kokopelli were in.
From the same author as Bokurano, Narutaru. A brutal Deconstruction of the Mons genre that explores what would really happen if a bunch of teenagers got superpowered pets. A lot of people die, the military gets called in, and things only get worse. Ultimately, there's very little mundane forces can do to someone wielding the godlike power of a Shadow Dragon. For a more specific example, the first villain in the series is an angry teenage boy who thinks it'd be awesome to kill a few billion people and send things back to the stone age as a form of Social Darwinism. And he can, because he has a Shadow Dragon.
The manga takes a sledgehammer to the series mainstay of Defeat Means Friendship. The friendlier the approach made by Section 6, the more the villains think they can get away with things, leading to more stubbornness and aggression or running away rather than Heel–Face Turn.
It also shows what happens when a magic dependent society and military runs into opponents who possess Anti-Magic strong enough that it simply can't be overpowered and they have to resort to prototype weapon system that convert their magic into mass weapon projectiles just to hurt and slow their enemies down. It also shows why relying on largely untested prototype weapons is dangerous in and of itself.
Two recurring villains in the final arc are a pair of Creepy TwinSuper Soldiers who Feel No Pain. During the penultimate episode, Kozomi and Ken manage to defeat them by tricking them into repeatedly pummeling steel support structures, which eventually causes severe joint and muscle damage. Nozomi notes that the inability to feel pain meant the twins were unable to realize they were destroying their bodies until it was too late.
In an early episode, Chiko befriends a young girl ( actually The Mole) who claims to be the daughter of a guard who works at the museum Chiko's friends plan on robbing. Even though this turns out to be a lie, the point is raised that the guard might lose his job if the heist goes off as planned. Despite what shows like Lupin III and Cat's Eye may tell you, robberies targeted at Asshole Victims or rich people who can afford the loss still might harm innocent people.
In an early episode, Lelouch calls for the support of a group of terrorists/freedom fighters to fight back against Britannia. His first time trying that, against an inept commander, it worked well. The second time was against an enemy that actually knew what they were doing. Sure enough, Lelouch's untrained and undisciplined allies lost their heads and tried to surrender at the first sign of trouble.
Rolo's powers in the series are apparently stopping time, but later on its revealed that he's really only putting your brain and his own heart on pause so it looks like he stopped time. The reason he never uses this for longer than a few seconds is because he's putting himself into cardiac arrest and near the end of the series when he uses it for an extended period of time it ends up killing him.
In the very first episode, Lelouch barely avoids getting caught in the crossfire between an insurgency and the occupying Brittanian forces. He's hiding behind some rubble, listening to the Brittanians discuss their plans... and his cell phone goes off. Whoops.
In one memorable chapter of Tokyo ESP, because Rinka never hid her true identity her house gets burned down by a criminal and several terrorists invade her school and give her a No-Holds-Barred Beatdown to the point that she's on the verge of death and subsequently loses her powers after recuperating from her injuries.
Jormungand: Koko's Badass Crew may be good at what they do, but even they can't prevail against elite special forces, namely when the US sends the Navy SEALs of Night Nine against them. Despite their efforts they're firmly on the backfoot, don't manage to kill a single one of the foe and even Koko's assistance barely lets them etch out a withdrawal. Very stark because they are usually Showy Invincible Heroes.
In Fruits Basket, neglect and emotional abuse leave characters nervous wrecks who are insecure, prone to lashing out, have little to no self esteem, and have difficulty forming relationships with others. Also, Akito constantly being told by her father that she's special because she's destined to be loved as the head of the Zodiac is one contributing factor to her being such a mess as a teenager. Her being The Chosen One really didn't make her a better person.
Hinako's fear of men is not magically cured by her falling in love with Daisuke. At best, she realizes that she feels comfortable with him alone. The ending also heavily implies that the relationship between the two won't last. No matter which way it goes though, it's clear that both will have to fight to make things work with Hinako's emotional baggage.
When Daisuke's crazy Stalker with a Crush tries to frame him for raping her, Hinako immediately knows that a rape victim wouldn't be acting the way she is and, put together with Daisuke's previous Nice Guy behavior, comes to the correct conclusion that the girl is just lying.
Early events has Ichigo frequently carelessly leaving his physical body lying around when he leaves it to go into Soul Reaper mode. The first movie, Memories of Nobody, brings up the more realistic consequences of this when Ichigo returns to find a small crowd gathered around his body and paramedics trying to revive him.
When Yhwach truly kills Yamamoto, rather than simply leave his corpse behind for somebody to revive with to come back fully restored, he obliterates his body, to make sure he cannot be a threat to him ever again. What? You think the Quincy leader of Wandenreich is going to just make a mistake after he fully knows about Orihime's abilities and even noted why Yamamoto didn't simply ask Orihime to restore his arm?
Several characters, such as Ichibei, Rose, and even Aizen find out the hard way that Explaining Your Power to the Enemy will get you defeated or killed when your opponent inevitably figures out your weakness as a result.
When Nnoitra attacks Ichigo (who was worn out from a brutal fight), Orihime protests. Nnoitra scoffs, stating that they're in his (enemy) territory, and that the previous fight gave him insight in to all of Ichigo's abilities.
At one point in Cowboy Bebop, Spike tries to use his badass flamethrower as a lighter...and promptly incinerates his whole cigarette to the butt.
One episode featured a Nurse Joy who was afraid of water Pokemon but still worked with them using various gear to avoid touching them. She's put into a position where she must work without the gear and succeeds. Misty congratulates her on conquering her fear... only for Joy to say that she's still afraid of them, and probably will be for life, but she won't let her fears stop her from her duties.
As James learns the hard way in "The Misty Mermaid", Weezing, a living gas bag, is not the kind of Pokémon you'd want to bring to an underwater fight.
In the Area 88 manga, Mario forgets that elaborate aerial maneuvers can be extremely punishing on a pilot's body. While executing an outer loop, he's overwhelmed by the G-force and crashes to his death.
Genki's excitement at being pulled into the monster world doesn't go over well with Holly and Suezo when he acts dismissive of the very real threat Moo poses. He gets a further wake-up call upon seeing the effects of Moo's actions firsthand.
Genki may be great at rollerblading, but they don't make very good shoes for traveling over unpaved roads and rough terrain. Fortunately, a kindly old couple provides him with some more appropriate footwear, along with a cloak.
In the last arc in Great Teacher Onizuka it turns out that all those injuries that Onizuka has received over the course of the series and its prequel actually have been hurting him a lot more seriously than anyone previously imagined. The numerous head and body trauma he's attained have resulted in him developing a brain aneurysm that winds up nearly killing him.
Dire uses the Thunder Split Attack on Dio, which, while powerful, leaves his guard open, so Dio just grabs his legs and freezes him.
During the fight against Tower of Grey, the protagonists devise a plan to deal with the enemy Stand, eventually deducing that Avdol cannot use his Stand because its powers would cause the airplane to explode, and Jotaro cannot use his since it could damage the fuselage and cause the plane to crash, leaving Kakyoin the only person who can fight against Tower of Grey since his stand would cause the least amount of damage in this situation.
During the fight against Empress, which has latched herself onto Joseph Joestar's arm, she kills a surgeon trying to remove her. When a nurse see this, she thinks Joseph has killed him and calls the police, and now Joseph Joestar is wanted for murder.
Out of the Stardust Crusaders team, Joseph is the only person to have experience flying a plane, but it's only a propeller-based plane he's ever piloted and he's had little experience. Naturally, this results in them crashing twice.
During the final fight, Jotaro fakes his own death by having Star Platinum stop his own heart to the point that Dio can't even hear a noise from him. Dio decides to confirm that he is truly dead by decapitating him, although this is a trap set up by Jotaro to land a hit on him.
With his street fighting experience and Anti-Magic, Touma Kamijou can handily defeat street thugs and people who rely exclusively on their powers. Against people who actually know how to fight, and people who are way stronger and faster than him, he gets his ass kicked, a lot. Also, despite his Healing Factor, he gets hospitalized a lot, since it tends to work too slow to matter in a fight.
When enemies pull out guns, Touma is forced to run, hide, and use trickery to win.
Touma did attempt to learn another language besides Japanese, but shows that learning another language takes time and doesn't give him instant fluency.
Since Touma spends all his time saving the world, he has poor school attendance and does poorly on assignments and tests.
Mikoto Misaka trying to go One-Man Army on the clone facilities without resting or telling anyone what she is doing ends up with her running herself ragged and almost getting killed by Frenda and Mugino. Also, the company outsources, so no matter how many facilities she destroys, it doesn't affect the project.
Accelerator was so dependent on his powers that in situations where he couldn't use them, he gets his ass kicked and almost gets killed, until he starts using guns and fighting smarter.
Misaki Shokuhou was so dependent on her mental powers doing all the work for her that she's out of shape and can't jog a short distance without getting out of breath. She also needs people to save her from enemies who are immune to her powers.
Othinus was so vain about her immortality and invulnerability that she wore a skimpy outfit so show off that she can't be harmed. Then she loses her powers, almost freezes to death, and has to rely on Touma to keep her alive from all the people who want her dead. Without her powers, she can't do feats that she once considered child's play, like jumping onto a moving truck.
Acqua of the Back's sword Ascalon is 3.5 meters long and masses 200 kilos. He's forced to leave it behind when he loses his powers, since he needed his Super Strength just to pick it up.
Although Touma seemed pretty well adjusted after his conflict with Othinus, he reveals he has PTSD when he sees scenes reminding him of it.
Detective Conan kicks off it's entire plot with a Reality Ensues moment: We're introduced to Shinichi Kudo (Jimmy Kudo in English) a hotshot modern day Sherlock Holmes. He's shown solving a couple of complex murders to establish his character, then he goes off and spies on a couple of suspicious guys in black trenchcoats...only to get nailed in the back of the head and force-fed poison. Hotshot ace detective or no, going off to follow a couple of thugs without any backup (not even, say, the trained martial artist currently accompanying you) was a stupid plan, Shinichi.
Notably Beck's Combining Mecha, shown to be extremely extravagant and flashy in comparison to the slower and bulkier title mech. However, Big O is a solidly built war-machine, and manages to blow apart the Megazord-esque robot in the span of a few seconds with just a few shots from its sidearm.
Big Fau's rocket punches in the finale are casually caught by Big O mid-flight, causing them to detonate and leaving Big Fau relatively harmless.
At the end of Nerima Daikon Brothers, the protagonists are being badly beaten by the corrupt Japanese government officials. The show's resident panda cub, up till now solely a participant in various gags, calls in several hundred of his friends in a Big Damn Heroes moment, to create an army of cute, cuddly panda cubs to fight the forces of evil. Aaaannnd... they fight about as well as you'd expect panda cubs to fight, losing the battle in seconds in a horrible curb stop battle.
One episode of Tokyo Magnitude 8.0 has Yuuki getting hit in the head by a piece of rubble. He shrugs it off and seems perfectly okay... For all of one day (several in-series episodes). He starts getting ill, and despite playing it off, eventually faints. He dies due to a brain hemorrhage combined with possible heat exhaustion.
In Lupin III, the gang steals a two hundred year old bottle of wine meant for the President of the United States and try it for themselves. It tastes like vinegar because it's been aged far too long (even the longest lasting of wines shouldn't be aged more than fifty years with roughly 99% meant to be consumed within five years).
This is especially notable since in most of fiction, the Mugged for Disguise trope is usually depicted as a rather harmless thing. You see it all the time in stuff like Lupin III and Magic Kaito (and American stuff like Catwoman), as the act of leaving someone Bound and Gagged in their Goofy Print Underwear is almost never presented as a serious crime. Then again, this series was co-produced by an Italian network, and Italy's own Diabolik does not present it as harmless.
When Lupin finally does get out, he has no money since his wallet and all the personal belongings he had on his person were confiscated by the police.
In the manga, Lucy wasn't Easily Forgiven by Kouta for killing his little sister and his dad.
Even though Lucy heals Kouta's wounds with her Vectors at the end of the manga, he still had to be admitted to the hospital.
You are alone in a room with a Creepy Child who has the same powers as Lucy above, but is friendly towards you because she's under a form of Mind Control and thus helped you? Then you remove the Mind Control device? Congratulations, the child who was friendly towards you because of the Mind Control certainly didn't appreciate being controlled, and thus kills you easily now that she's free and really damn angry.
In Anatolia Story, actions have consequences, especially for people in positions of authority. Yuri and Kail in particular have to be very careful about some decisions they make, and Nakia's often able to get away with her plots because while the protagonists know she's behind them, it's impossible to accuse the most powerful woman in the empire of crimes with no evidence. One story arc in particular centers around Nakia framing Yuri for murdering the current king. She flees to another town to hide and Nakia's forces try to retrieve her, under the excuse that she's the lead suspect. Kail desperately wants to save her, but driving away Nakia's seemingly justified soldiers could very well cause a civil war. Meanwhile, Yuri's maids speculate on and ultimately dismiss a plan to fake one of them being the real assassin, because a crime that serious would mean an immediate execution. Sure enough, when Ursula goes through with it, that's what happens to her.
When Ursula poses as a fake Ishtar, her plan works up until Kail actually shows up and identifies her as a fraud. Inversely, Yuri showing up with no proof of her identity predictably leads to her being laughed at when she insists that she is the real Ishtar.
Yuri gets pregnant pretty quickly after "officially" taking up the job of concubine. Considering that the two sleep together every night and she's having unprotected sex, this isn't surprising.
Nakia repeatedly tries to have her son be declared the next king. Her son, Prince Juda, is Modest Royalty and has no desire to rule. After his mom tries to force him and pulls one evil scheme too many on Kail and Yuri, Juda simply ends the whole matter by officially abdicating.
Yuri pulls an I Choose to Stay and she and Kail both realize their feelings for one another! Moreover, Kail decides that he wants her to be his queen and no one else! Great, right? Well, not quite. The two may be in love and Yuri may have the support of the common folks, but they still need to get Nakia's approval and get the Senate to agree to it, and the Senate is divided between refusing on the grounds that Yuri brings no political alliances to the table and thinking that Yuri's capability warrants overlooking the breach of tradition.
In Gou-dere Bishoujo Nagihara Sora, Sora, who is obsessed with manga tropes, orders Ryoko to bathe with her glasses on because Meganekkosnever take their glasses off. Ryoko's glasses fog up and she can't see.
Piña is a trained warrior, but had not been in a real battle before. She freezes up when her plan at Italica goes wrong and everybody starts getting slaughtered.
The JDSF makes a peace treaty with the city of Italica, but since the Special Region doesn't have anything like phones or radios, nobody else knew about it, and they get attacked by the Rose-Order of Knights.
When several Dark Elf warriors volunteer to help Itami and the others hunt the Flame Dragon, he gives them a crash course in using the Panzerfaust. When they actually confront it, they panic and completely forget what he taught them. Carnage ensues.
Suguwara realized that if all that massive amount of gold suddenly entered Earth, it would cause havoc on the world's economy.
In Yu-Gi-Oh! GX, Judai hunts down Big Bad Sartorious and challenges him to a game of Duel Monsters to stop him from launching a Kill Sat. And gets ignored—Sartorious has better things to do than waste his time playing children's card games. He eventually does duel Judai, but only because Judai manipulates events to force him to.
It's a popular cliche in anime and manga for a Wholesome Crossdresser student (usually male) to appear in the school and no one batting an eye except for hijinks and gags. In Wandering Sontrans girl Nitori tries to go to school in a Sailor Fuku in wig. She promptly is sent to the nurses office, her parents are called to take her home, and the incident causes her to be bullied for the remainder of her time at middle school.
Also, the Galfa play for keeps and know all the tricks in the book: the only reason they respect the Sorting Algorithm of Evil is because Earth was not expected to put up any meaningful resistance so they didn't bring serious combatants since the start; when they find out about Dendoh they send down agents to kill the pilots (who get away because of another instance of this trope: as the Galfa are robots, their agents have data consisting in height (around 1.41 m), primary constitutive elements (water and proteins), and optical devices (two lenses. Also known as eyes), and every single Japanese child their age has the same characteristics. The agents fail to recognize the pilots even when they see them passing by) and target Dendoh's main weakness, namely its dependance on batteries; in the meantime, the Galfa emperor deploys Arthea, who pilots the Dendoh-like mecha Ogre but is far more experienced, and sends superior forces as reinforcements; after the defeat of the first invasion and the capture of Ogre, they send some of their best troops and target the pilots again, resulting in brainwashing of Hokuto, as they couldn't pilot Ogre otherwise; and when that fails, the Galfa emperor deploys his whole army, reasoning that Dendoh could not face them all, while also keeping the best forces to his own protection because Dendoh's only chance is to kill him.
Kaori insists that she and Kousei will have a great performance during a musical competition despite him being unable to play the piano anymore, due to psychological issues. So he overcomes his issues through The Power of Friendship, right? Wrong. He freezes up midway through the performance.
Kaori is an Ill Girl who becomes hospitalized halfway through the series. But she's the love interest and the lovable Manic Pixie Dream Girl so she will get better and have a happily ever after... Except that doesn't happen. She dies despite everything and all her determination.
In Yu-Gi-Oh!: Capsule Monsters, Solomon Muto attempts to hold off an entire pack of Flower Wolves with a torch. He fends off a few, but the rest quickly pounce on him.
The other main theme is that virtual reality isn't as real as 'real' reality. The relevant corollary is that you can't use game logic or meta-logic to get by in a VRMMO. Problems are solved by negotiation, planning, foresight, and flexibility, not hitting things until they submit.
The Aincrad arc ends with a duel between Kirito and the avatar of Kayaba, with Kirito's Love Interest Asuna Taking the Bullet for an attack that would have killed him and dying in his arms. After she dies he picks up her fallen sword and stands to attack Kayaba, so Roaring Rampage of Revenge right? He then proceeds to swing his sword vaguely in Kayaba's direction, not even looking at him, mentally broken and incapable of continuing the fight in a meaningful fashion.
In Aincrad, death is final, meaning that anyone who dies will die for real.
The SAO incident was scandalous to the point that Argus goes bankrupt and sells off its assets to another company. Likewise, news of Nobuyuki Sugou's experiments is leaked and results in RECT Progress Inc. collapsing due to the lawsuits and poor publicity from said news, and sells their assets to another company.
Kikuoka implies that had the authorities not intervened, the SAO incident would have blown up into an even more massive scandal and that the survivors would be constantly hounded by the media. Which would plausibly happen if something like the show happened in real life.
At the end of the ALFheim Online arc it's revealed that the VRMMO market was basically annihilated after two high-profile controversies where innocent people were used for experiments or to satisfy someone's god-complex, which is indeed what would happen if thousands of people died in two years in one MMO because they weren't allowed to leave, and twenty people were kept in their comas and used for brain experiements in the other. If it weren't for Kayaba giving Kirito a data seed to create new worlds, the market would have completely died.
In the Aincrad arc, Nishida, who worked on Sword Art Online, notes that he's in no hurry to leave Aincrad, because since he's in a technical occupation, his skills are completely outdated after two years trapped inside. Similarly, once they leave Aincrad, the survivors are behind in various ways (when Kirito's sister notes that he was a good student, he says that was before he went into SAO), and so apply to a special school for survivors, which the government establishes in part as a means of monitoring them for antisocial tendencies.
Shino's situation as a Minor Living Alone is far from ideal. She has trouble making ends meet, to the point at which she, despite being unwilling to sell Hecate (a weapon in GGO that is very powerful and of great personal significance to her), has to admit that it would go a long way toward paying her expenses. Several unscrupulous classmates take advantage of her to host parties at her apartment. Worst of all, Shino gets targeted by a serial killer because she lives alone and is a vulnerable target.
Citizens of the Free Planets Alliance see themselves as Eagleland, but forget the possibility of the government having self-interested politicians who don't care whether the Alliance wins or not. And when Reinhard takes power in the Galactic Empire, they're willing to abandon its citizens in order to gain positions within the Empire.
Because of the Alliance's continuous war and young birth, it's economy is very fragile.
When they try to launch a crusade of "liberating" the Empire's citizens, turns out many never wanted to be liberated to begin with and were fine since no one interfered with their status of life. It hits the Alliance even harder when Reinhard uses his Salt the Earth campaign, causing them to plunder the citizens they were sent to "help".
A rare case of the more antagonistic forces comes up within the Deadly Court in the Lippstadt rebellion, with many of its leading characters being Glory Hounds in their "crusade" against Reinhard. Many of the nobles still continue to backstab each other and either interfere or reject advice from their competent military commanders. And certainly doesn't work when set the example of Disproportionate Retribution by nuking an entire planet to death for a little protest against exploitation. Reinhard and his allies shows the act of a Glory Hound done right with a competent military force and a well-united leadership with a backbone, all becoming embodiments of noblesse oblige.
Oberstein knows that pragmatic methods will earn him the hatred of everyone. That's why lets Reinhard rule and sets himself up as an Evil Chancellor.
Some of his actions also have consequences, especially with the nuking of Westerland. While it helped Reinhard win against the nobility and earn the support of the Empire, there are those would clearly sent this action. This causes Reinhard to be talked down on by his best friend and results in a (failed) assassination attempt.
Earth also suffered this in the backstory. While establishing an army as a peacekeeping force, they never put any regulations on it. This resulted in what was once The Federation becoming more militaristic as the planet wasted all of its expenditures on it, resulting in even more oppression on its fellow colonies. Once those colonies rebelled and cut their sources of food and resources, the Earth military then turned into an Army of Thieves and Whores before being easily slaughtered and its standing home world completely obliterated into a backwater world.
In the anime, Taroumaru is an adorable dog that helped the School Life Club find Miki so he can be relied on to help the girls out in trouble, right? The answer is no. He is frequently restless and mischievous, cooped up too long in the only safe zone in a terrifyingly dangerous area with little opportunity to wear himself out with exercise. His curiosity and troublemaking would result in him running off in the middle of the night, wandering into the basement where he gets zombified by Megu-nee, which directly caused Kurumi to get bitten too when she went after him.
Kurumi picks up a gun in the wreckage of a crashed helicopter. When she shows it to Miki, Miki discards it because none of them are trained with guns and thus it's more dangerous to them than the zombies. She is also worried Kurumi wants it to kill herself.
The Devil Is a Part-Timer! has reality slap the faces of the main characters, most of which come from a fantasy world into modern day Japan. Examples include:
Running full speed and catching a person, no matter how strong you are, is going to hurt a ton. Emi Yusa, aka, Emilia the Hero, does this and in doing so breaks her legs.
Putting down whatever age you think fits doesn't quite work as well when you want to work longer hours at a job. The main character, Maou, aka, Satan, puts his age as seventeen and is only allowed to work part-time as a result. Meanwhile Emi puts her age as eighteen and is able to work a better job as a result.
Pulling a knife on your sworn enemy might work in a fantasy world, but doing it in modern day Japan will earn you a trip to the Police station, as Emi found out. Later on when attacked by Sariel, Emi is concerned since she can't fight back at the moment, only for the clerk at the store behind her to rush to her aid and force him off.
Doors aren't easy to just plow through. Emi finds herself unable to break down Maou and Alciel's and ends up hurting herself in the process. Later Sariel tries to attack Emi at a convenience store by trying to run through the glass door. Instead he smacks into it.
Digimon Adventure tri. averts the usual Hero Insurance that the Digimon seasons have. After a battle with Kuwagamon, the airport, along with Odaiba, has been completely leveled, with mentions of people having been hospitalized in the attacks, and the news treats the Chosen Digimon like they're the bad guys. All of this sends Taichi into a Heroic B.S.O.D., fearing that he might end up killing someone.
In Hai To Gensou No Grimgar, the main characters find themselves in a fantasy world called Grimgar. They are forced to become volunteer soldiers and hunt monsters in order to earn a living. However, none of the characters magically gained fighting abilities upon arriving in Grimgar and most of them don't have any fighting experience at all. As a result, they have a lot of trouble fighting even the weakest of monsters.
Death is final in Grimgar. It isn't like in an RPG where a fallen comrade can be revived by magic or with an item. If a team-mate dies, then they're permanently dead.
Haruhiko from Myriad Colors Phantom World instantaneously gains incredible martial arts abilities by sharing memories from his Action Girl classmate. Unfortunately, Haruhiko is a nerd that is very unathletic and doesn't possess the necessary stamina or strength to pull off his new moves.
In the anime version, Narsus was the first and only noble to free his slaves. But to his shock, he finds out that his now freed slaves quickly spent all the money he provided them because they didn't know how to wisely use their newfound wealth. They asked him to buy them back as slaves. In addition, because slavery provides the backbone of Pars' economy, traditional nobles now despise Narsus and not long after, he is thrown out of court.
Hodir, an ambitious and Affably Evil man, is killed by Arslan's men. Arslan, holding the same ideals about slavery as Narsus, then frees Hodir's slaves, telling them their lord is dead, believing they will be happy at their new freedom. Said slaves angrily attempt to kill Arslan instead and avenge Hodir's death. Narsus speculates that Hodir must have treated his slaves kindly and in the eyes of the slaves, Arslan was the evil lord who killed their beloved master.
Digimon: The Movie's second segment and its Japanese counterpart Our War Game has children all over the world send our heroes e-mail of support as WarGreymon and Metal Garurumon battle Diablomon. However, with 1999 technology, so much e-mail just flatlines the connection speed they have, weakening our heroes. Thankfully, this is used in their favor, not only to allow Omnimon to be formed, but also to pin Diablomon and deliver the final blow.
In the anime Sengoku Basara, Masamune receives a gunshot injury to his stomach and unlike earlier instances, he is bedridden for over two episodes. Despite recovering enough to walk and fight, he is noticeably slower when fighting Mitsuhide and his wound reopens before he faces off against Oda, significantly handicapping him during the fight.
Shimoneta shows the consequences of a world where people can't express or even understand their sexual desires. Case and point, Anna breaks into Tanukichi's house and tries to rape him. Without an understanding of consent or lewdness, she doesn't see anything wrong with this, since she "loves him." She only fails because she doesn't understand how penetrative sex works either. And no, Double Standard: Rape, Female on Male does not apply here.
While as over the top as the rest of the series, the end of the first part of Harenchi Gakuen contain multiple examples:
The title of the series translates as "Shameless School", and it lives up to it with insane teachers that go around practically naked, molest the students and have tried to murder them multiple times and students just as crazy and perverted as their teachers. When the Moral Guardians find out, they immediately decide to shut it down, even if their chosen method (putting together an army and trying to kill everyone in it) is a bit excessive.
Professor Macaroni mentions there once was an Italian Shameless School. It was shut down for the very same reason (and with the same methods, with him being the only survivor).
The leader of the Moral Guardians is a very excitable old man... Who, due his age, suffers from incontinence. He also tries to cut down with a sword one of the teachers, but the much younger man easily kills him with a spear.
Knowing that in the series girl only suffer Clothing Damage for Fanservice purposes, a girl starts prancing around the explosions from falling artillery shells. She's quickly killed.
As soon as news of this full-blown war get around, war profiteers start taking advantage immediately, in particular an Arms Dealer who supplies the school hoping to prolong the war and make more money.
The parents of the protagonist Yamagishi, two butchers with an appalling lack of ethics, decide to steal the bodies and sell them as pork, and move on the battlefield during the night. They're mistaken for scouts and gunned down by Yamagishi himself.
A subplot during the series was of ninja waiting for the right moment to restore the Shogunate. When they learn of the attack on the school they join the fray, hoping to turn it in a full-blown civil war... And as soon as they show their faces they get all gunned down by five Mooks with submachine guns and a machine gun, and mocked as antiquated.
In Accel World, Yuniko initially approaches Haru by pretending that she's one of his distant cousins who's come over from the countryside for a visit. Haru is immediately suspicious that an eight year old girl has come to his home on her own, and right when he was starting to gain notoriety in the Brain Burst community, and is able to confirm that she's lying simply by going through old family photos and noting that Yuniko looks nothing like the cousin she says she is.
For much of the manga Shouko seems perfectly unharmed by the vicious bullying she received in the past due to being deaf. She befriends her former bully quickly and seems very happy for the most part. It's later shown the bullying effected her more than she let on, to the point where she wanted to die.
Shouya ends up falling head deep into a body of water from several stories up, after saving Shouko. It turns out the Soft Water trope isn't exactly true and he ends up comatose in the hospital for a while.
Originally Inside Mari seems like a genderbender body swap manga about a man who wakes up one day in the body of a teenage girl. Over the course of the manga this gets debunked and one character even notes how unrealistic that is. The protagonist has a Split Personality and imagined the body-swap.
In episode 7 of Golden Time, after "borrowing" someone's bike, Koko gets sent to a police station.
The Familiar of Zero: Louise's oldest sister Eleanore was in love with her fiancée, the Earl of Burgundy. However, her Tsundere behavior made him think that she hated him and called off the engagement as a result.
The initial premise of Overlord is a virtual reality MMO player becoming his avatar for real after staying logged in when the servers were permanently shut off. As soon as he confirms this is actually happening, he instantly realizes he's vulnerable to this trope and carefully considers what to do about it. For the first few volumes, Ainz acts as conservatively as he can get away with, pumping his underlings (a considerable horde of them - he did suddenly become the titular Overlord) for information and making very detailed observations about how the New World works. This works out in the long run, as HighDark Fantasy world or not, the New World runs on Realpolitik, ugly and violent battles, and wars that can traumatize an entire nation.