Yo-Jin-Bo ("The Bodyguards") is an Otome Game by Two-Five, available in English from Hirameki International. Ordinary High-School Student Sayori finds a pendant while exploring a castle's ruins with her history club. She takes the pendant home with her. That night the ghost of a long-dead princess appears and gives Sayori a vision of how she, Princess Hatsuhime, died. Sayori then wakes up, in Hatsuhime's body.Lucky for her, six highly skilled body guards arrive to help her make it back to her castle safely.One of the few officially translated JapaneseVisual Novels without any hentai content. An extremely silly, extremely funny romp through medieval Japan.
Anachronism Stew: The game takes place somewhere in Japan a hundred and fifty years ago. That doesn't stop references to modern culture from popping up. Constantly.
Anguished Declaration of Love: In a couple of the endings, but most notably Ittosai's good ending, in which Harumoto forces Sayori to confess her feelings for Ittosai during the standoff on the watchtower.
Anticlimax: If you are paired up with them, Jin and Muneshige will get in a fight. Then Kasumimaru will show up and interrupt them before a real victor is decided. (Presumably, this is to keep the player's subsequent decisions from being influenced by knowing who is the better fighter.) The Bad endings also involve a certain amount of anticlimax since there's no final confrontation with Harumoto.
Armor Is Useless: Nobody seems to be wearing any. Mon-Mon subverts it by wearing chain mail under his clothes, which saves him from a kunai in the back.
Armor-Piercing Slap: Sayori does this to Ittosai when he gets to be a real jerk. He doesn't react much other than to complain about being hit. She also does it to Mon-Mon when he feigns a fatal injury to gain sympathy, though it's less surprising that he doesn't strike back.
Arranged Marriage: Hatsuhime was going to be married off to a ten-year-old by her retainer. She agrees to marry him in Yo's Bad Ending.
Arson, Murder, and Jaywalking: A variant when Harumoto is listing off his reasons for getting rid of the princess: She's irresponsible, she'd weaken the clan, her presence ruins the chance for a more suitable heir to take power (and thus for Harumoto to control the puppet heir)... and then he starts going on about how Hatsuhime makes a fuss over yakiniku.
Harumoto: "And then, demanding MANGO PUDDING! Where are we supposed to get the mangos?! Does she think this is a tropical island? Do we live in Jakarta?"
Badass Cape: Yo and Bo wear capes "because they are cool".
Badass Crew: Any one of the six guys is a match for a whole team of ninja.
Badass Long Robe: Ittosai wears a big, furry jacket... draped over one shoulder.
Bad Dreams: Stay in the cave with Yo or Ittosai and you'll get to watch one of these. Yo dreams of when he accidentally hurt his mother as a child. Ittosai dreams of his father, causing him to flip out and hold a knife to Sayori's throat.
Barehanded Blade Block: Mon-Mon does it to save Hatsuhime. He does get his arm filleted open to the bone for his troubles, though.
Beauty Equals Goodness: Played straight and averted. Just about everyone except Yahei (nice old man) and Nobumasa (big, dumb, and evil) could be considered at least above-average.
Beauty Is Never Tarnished: Despite running from ninjas through a forest, Sayori doesn't ever rip her kimono or get sweaty or anything. In fact, after the hot spring, Jin even comments on how lovely girls smell after they get out of the bath...despite the fact that her clothes were not washed and thus should stink. She does break a sandal strap once, but that's only so Bo could carry her.
Being Watched: Being chased by ninjas, everyone's always getting the feeling that they're being watched. Spying on Mon-Mon and Muneshige in the hot spring will result in them thinking they're being watched, too.
Bespectacled Bastard Boyfriend: Ittosai, at least for a while. His abusive behavior is an effort to drive Sayori away from him, and is thus abandoned completely once he finally accepts the idea that she has feelings for him.
Beware the Nice Ones: Arguably all of the guys except Ittosai, but Bo and Mon-Mon get special mention. They are absolutely lethal when angered. Bo cuts Nobumasa in half vertically and Mon-Mon punches through his chest and crushes his spine. Ouch.
BFS: Ittosai's sword is almost as long as he is tall. Nobumasa's spear is also quite large.
Blatant Lies: A prominent feature of Yo and Sayori's confrontations with Nobumasa, who believes every word even when they're claiming that Sayori is Yo's mother or that they're escaping from a witch who lives in a Gingerbread House.
Blonde Brunette Red Head: Yo, Bo, and Jin are a male version, with some allowances made for Anime Hair - Yo's hair is light green and Bo's is blue, but they fill the roles of blond and brunet perfectly.
Big Damn Heroes: Sayori trips and falls as she and Muneshige are running to first escape the castle. The ninjas have her surrounded and are about to kill her. Enter five wise-cracking heroes. Those poor ninjas never regain their competence.
Bittersweet Ending: The Bad and Forgotten Dream endings. Hatsuhime is home safe, but Sayori doesn't get her guy.
Blind Without 'Em: Ittosai, probably. In his Good ending, Sayori tells him her real self is rather plain, not beautiful like Hatsuhime. Ittosai replies that this is a good thing, as his eyesight is rather weak and he'd be jealous if other men were admiring her beauty when he could not.
Bloodless Carnage: Averted oh-so-much, but somehow without going completely overboard.
Bodyguard Crush: The game is called "The Bodyguards". What do you think it's about?
Hatsuhime also has an explicit crush on Muneshige, who has been her bodyguard from childhood, although she never tells him. It's revealed to be one-sided in Muneshige's Good ending, although they marry in Mon-Mon's Bad ending.
Body Snatcher: Sayori is kinda forced to be one, since she's suddenly thrust into Hatsuhime's body, but some endings later reveal Hatsuhime was still in the back of her mind watching everything. Other endings establish that Hatsuhime has snatched Sayori's body in the meantime and has been enjoying herself immensely. Yo's Good ending has Hatsuhime and Mon-Mon switching bodies, so that Sayori is in Hatsuhime's body, Hatsuhime is in Mon-Mon's body, and Mon-Mon is in Sayori's body back in the present. No mention of what Sayori thinks of having a perverted monk inhabiting her body and dropping out of school to become a female professional wrestler...
Bottomless Bladder: While hiding under the floor of the enemy castle for several days, Sayori notes that Muneshige snuck out to bring back food and water...and curiously doesn't mention what they did with the waste products of said food and water.
Bullet Proof Fashion Plate: In addition to running from ninjas, the guys also fight them and remain equally clean, despite the amount of bloodshed they cause. Shoot, even when they're said to be injured in text, it never shows up in the art.
Bulletproof Vest: Mon-Mon wears chain mail under his clothes. It saves him from a couple of kunai in the back.
But Now I Must Go: The Bad endings, usually thanks to the pendant taking Sayori back to her own time in spite of her wishes. In Jin's Bad ending, he beats it to the jump, taking off without even waiting around to get paid.
But Thou Must: Quite a few decisions seem to have no influence on events. All of them ultimately affect the ending, however.
Cast Full of Pretty Boys: The only girl who appears onscreen besides yourself is Hatsuhime (who kinda is still you, in a way). A couple of maids may speak during the endings, but they never get to be in the picture.
Celibate Hero: Muneshige spent his entire adult life protecting Hatsuhime, so he never had time to find a wife of his own. He complains a bit about this in the beginning.
Chekhov's Gun: Muneshige gives you his shortsword at the beginning of the game. The blasted thing usually gives you away in the final chapter. There are also the various references to Jin's sword being a dull-bladed piece of junk. It's in that condition because his special technique involves slamming his sword against the ground.
Chekhov's Hobby: Mon-Mon spends a good deal of the game joking about giving Hatsuhime a massage, and Muneshige finds he's actually fairly skilled. Mon-Mon's Good ending has him convince Nobumasa that he's a real monk by "driving out an evil spirit"...by rubbing his shoulders to rid him of a backache.
The Comically Serious: The guys often try to get Ittosai in on their jokes. He wants none of it, but resigns himself to the role of straight man after the party begins splitting up and there's no one else available to play the part.
The Coats Are Off: When he fights Kasumimaru, Bo uses his cape as a distraction to gain the advantage.
Cower Power: Considering they're her bodyguards, it may be slightly justified.
CPR (Clean, Pretty, Reliable): In Mon-Mon's ending, Hatsuhime is choked by Nobumasa. Mon-Mon uses CPR to revive her with little to no problems, despite the fact that she had neither breath nor heartbeat. It does result in Sayori and Hatsuhime's minds switching back, though.
Crash into Hello: Hatsuhime literally runs into Jin at the festival. Nearly pulls his haori off, too.
Crouching Moron, Hidden Badass: Jin's fighting stance is said to be wide open and full of holes, prompting much mocking from both friends and enemies, but attempts to attack him are swiftly parried or dodged.
Disney Villain Death: In all routes, Kasumimaru falls to his death before the bloodloss gets to him. In all but Ittosai's Good ending, Harumoto falls from the top of the watchtower before it collapses.
Dude Looks Like a Lady: Bo claims he should be allowed to guard the Princess during her bath because he "looks androgynous" with his long hair and wouldn't disturb her as much as the other guys. (Nobody else is buying it.)
The Dulcinea Effect: Aside from money, the reason Yo, Jin, Bo, and Mon-Mon take on the assignment of rescuing Hatsuhime is that she's a princess and they might get a reward kiss.
Eating the Eye Candy: The Forgotten Dream endings have Sayori able to remember only some small detail of the guy - his hair, his eyes, etc. - and her feelings for him.
Fake-Out Make-Out: In Bo and Muneshige's paths, this nearly happens when Nobumasa demands proof that Sayori is her chosen bodyguard's wife and not Hatsuhime. Nobumasa always interrupts before they can actually kiss, however.
Hatsuhime, who is always sneaking out of the castle and can be a sharp-tongued spitfire.
Jin, who is occasionally hotheaded and tempermental.
Sayori, who doesn't fit the stereotype at all.
Guide Dang It: Your ability to progress down certain characters' paths are dependent upon seemingly meaningless But Thou Must choices in the beginning of the game, before you have even met said characters.
Guns Are Worthless: Ruthlessly averted in one death scene. If the ninjas bring out guns, the guys declare them to be cowards for using them...and then die. Rapidly. Played straight in Yo and Mon-Mon's path. Yo gets shot in the stomach, and this only puts him out of commission for the evening.
Jin around girls. Both Jin and Muneshige in Ittosai's good end, when Hatsuhime/Sayori says she's dating him.
In a much more serious example, Ittosai mentally checks out completely for a few minutes thanks to a round of Armor Piercing Questions from Bo. He comes out of it to some extent in order to protect Sayori, but remains pretty shaken.
Heroic Resolve: Happens occasionally towards the end of the game, but especially in the guys' Good endings.
He Who Must Not Be Seen: And she. Any of Sayori's modern-day history club members and any servant girls or vasals in the castle will not have any face at all. Sayori herself does not have a full-body sprite, only a small portrait (although she does appear in a couple of CGs). She's also unvoiced.
Her Heart Will Go On: The Bad endings. Sayori arrives home in the future, with her beau long dead. But she gets to make a little speech to herself about how she'll remember him.
Hey, You!: Ittosai calls Sayori "woman" throughout the entire game, up until his Good and Bad endings.
High-Pressure Blood: Certain scenes have blood spurting everywhere, but it's usually from a very major injury such as a knife to the throat or an arm cut completely off. More minor injuries show less blood.
Horrifying the Horror: By the climactic confrontation on the roof of the watchtower, Harumoto is fully in the throes of a Villainous Breakdown with nothing left to lose... but even he is disturbed by Ittosai's declaration that he will run Sayori through to kill Harumoto, and then commit suicide.
Hot-Blooded: Mon-Mon claims he was this when he was younger. Jin still is.
Hot Men At Work: In Muneshige's Good ending, Sayori tells him he looks marvelous working on rebuilding the watchtower.
Hurt/Comfort Fic: In-game! Ittosai's endings have a little voice pop up in the back of Sayori's mind asking her if she doesn't want to help heal his troubled heart.
I Choose to Stay: The Good endings. Like you didn't see that coming. Additionally, in Muneshige and Ittosai's Good endings, Hatsuhime is thrilled to be able to stay in the modern era, which she has been enjoying immensely while inhabiting Sayori's body.
Identical Grandson: In Mon-Mon's Bad ending, Sayori meets a man who is the decendant of Yahei. He looks exactly like Yahei. And in Mon-Mon's Good ending, Hatsuhime says she and Sayori are probably related by blood due to the fact that she could summon her through the pendant. You'd think the identical face would've given it away...
Idiot Hair: Bo's hair is sleek and well-behaved, except for one strand that hangs in his face. It doesn't have anything to do with his intelligence, though.
Just in Time: In Ittosai's ending Ittosai is wounded and unable to protect the princess. The castle archers arrive and shoot Nabumasa right as he's about to shishkebob them both.
Katanas Are Just Better: Everyone (except Mon-Mon, Yo, and Nobumasa) carries a katana. Possibly justified, given that the game is about samurai.
Kawaiiko: Amusingly, Yo. He addresses you as onee-chan (Big Sis) and requests that you call him "Yo-chan" because it's cuter. Then he tells you not to treat him like a kid.
Keep It Foreign: Bo often speaks English in his voiceovers; the subtitles render it in French as often as they keep it English. There are also a couple of other instances of Gratuitous English in the Japanese dialogue which are changed to Gratuitous Spanish in the subtitles.
Kill Us Both: In Ittosai's Good ending, Sayori tells Ittosai to do this when Harumoto uses her as a Human Shield. Ittosai is fully prepared to go through with it (and then kill himself), but fortunately Harumoto gets impatient and gives Ittosai an opening.
Kiss-Kiss-Slap: In Jin's Good ending, Sayori is overjoyed to see him in the future, they kiss, and then she begins beating on him and asking why he didn't come see her sooner.
Last-Second Word Swap: Part of Muneshige's Good ending. He addresses you as "Princess" in front of Nobumasa (who they had been trying to fool), and quickly changes it to "Princess Mononoke" and declares that you were playing a trivia game.
Leet Lingo: Mon-Mon has one line traslated into 1337: $7|=U NOO|3!!!1! (STFU you noob!) Jin also has one in Muneshige's Good end: j00 h4><><0r3d |V|y <3!!11! (You hacked my heart!)
Let's Split Up, Gang!: Muneshige suggests this, and then splits the six guys into three teams of two: one rear guard, one decoy, and one escort. Your escort will then be split later.
Lightning Bruiser: Nobumasa. He's big, powerful, and so fast he can appear to be attacking from multiple places at once.
Limited Wardrobe: Partly justified, as running from ninjas tends to put silly things like changing clothes on the back burner. The plot only takes a few days' time, too.
Live-Action Escort Mission: The six guys are tasked with getting you, Sayori-in-Hatsuhime's-body, back to the castle. Luckily, Sayori is a pretty well-behaved escortee.
Loners Are Freaks: Despite being stuck traveling with the group, Ittosai would really rather they all butt out.
MacGuffin: The pendant that takes you back to medieval Japan.
Magical Eye: Kasumimaru. His right eye is naturally gold; the left is a bright yellow artificial eye which he uses to cast a spell which blinds his opponents while allowing him to function normally.
Magical Gesture: Kasumimaru requires a series of hand signs to activate his special attack.
Magical Incantation: He also requires one of these. Mon-Mon uses the same sequence to bring Sayori back to the past in his Good ending.
Martial Pacifist: Bo dislikes "pointless bloodshed", but is just as capable of killing as any of the other guys. Actually, most of the guys except Ittosai dislike killing without reason to a fair degree.
Medium Awareness: Mon-Mon's response to the previously-mentioned ribbing about not being "one of the guys you can get at the end of the game" is that he has an Image Song and has spent too much time reading his lines to not be a "captureable character".
Modesty Towel: Muneshige and Mon-Mon during the hot springs visit.
The Mole: Ittosai, in exchange for poison antidote. The mole routine doesn't last, though.
Mood Whiplash: The game shifts between silly and semi-serious, but the silly parts are so silly it's a whiplash anyway.
Mook Chivalry: Played straight and averted. The ninja will often attack in teams (not that this helps), but when their boss Kasumimaru gets into the fight, they step back and let him fight one-on-one.
Monumental Battle: In every guy's good ending, the final battle is atop the castle watch tower.
Monumental Damage: Said tower ends up blown to bits. Special mention to Ittosai, who rips the wall of the tower open with his sword to break his fall.
More Expendable Than You: The guys sometimes make a speech about how they're doing their job to protect their princess, and that it's okay if they die. Sayori, of course, is never happy about this.
Mukokuseki: The game takes place in Japan. Nobody really looks Japanese, with the possible exception of old man Yahei.
The Good Ending in which Harumoto is brought to justice, everyone arrives back at the castle safely, and Sayori gets to stay happily ever after with the lucky guy. Gotten by choosing to spend the final evening talking to him and making the correct choice on the road the next day.
The Bad Ending in which Sayori is brought back to the present by the pendant, usually (but not always) after she and her guy confess their feelings to one another. Gotten by making the wrong choice on the road on the last day.
The Forgotten Dream Ending in which no one else makes it back and Sayori is pulled away by the pendant without even learning if the guy likes her (in fact, he often behaves quite coldly), only to wake up at home in her own bed unable to remember anything but a vague notion of him. Gotten by choosing to spend the final evening talking to one guy, then running away with the other the next day. In other words, attempting to play the field. Also known as The Really Bad Ending.
Muscles Are Meaningless: The guys range from beefy to lanky, but all seem to have an equal level of actual strength.
Mushroom Samba: Harumoto uses a "Western drug" to amplify his special attack, causing the guys to see nightmares.
My Girl Is Not a Slut: Subtle: Choosing to hang out with the wrong guy the night before the final day of your journey will keep you from getting the Good ending. But nothing is specifically mentioned in-game about it.
Narnia Time: In the Bad endings, despite being gone for several days, Sayori wakes up at home at the exact same time as she first left. However, in Muneshige and Ittosai's Good endings, Hatsuhime takes control of Sayori's body during the days they're switched and gets a little wild and crazy.
No Export for You: The PS2 version, which includes extra romance paths for Kasumimaru and Harumoto not available in the PC version, is only available in Japanese.
No Guy Wants an Amazon: Played with by Muneshige in his Good ending. He claims that, though he cared for Hatsuhime, he never felt romantically about her until her personality changed when Sayori took over (then he fell head-over-heels in less than a week). Remember that Hatsuhime was a brash tomboy, and Sayori is much quieter and more traditional - he often praises how refined and elegant she is suddenly behaving. Unfortunate Implications or just Values Dissonance? Or maybe a bit of both.
Not Quite Dead: Ittosai's backstory. Jin stabbed him, thought he was dead. Turns out, his sword was too dull to actually kill him
Not What It Looks Like: Several times, both visual and auditory. For example, spy on Muneshige and Mon-Mon in the hot spring and you'll get a scene where Sayori thinks they're doing something and is highly disturbed. Follow Jin and Muneshige's path, and Muneshige will think Jin is doing something when he treats Hatsuhime's snakebite. Etc., etc., etc..
Pose of Supplication: In Mon-Mon's Good Ending, Hatsuhime does this as she pretends to be his disciple monk. Jin also mentions it if you speak to him outside the cave.
Post-Kiss Catatonia: To help his "motivation", Sayori gives Ittosai a kiss on the cheek. It has the humorous effect of turning not only the recipient into a "moaning zombie", but the other guys present as well.
Say My Name: Ittosai's Bad ending is called "Call My Name" for this exact reason.
Scenery Censor: During the hot springs scene, the four guys who don't wear Modesty Towels have their naughty bits hidden from camera view by bowls, stray not-so-naughty body parts, or convenient camera angles.
Schr÷dinger's Butterfly: Referenced. Sayori once says that Hatsuhime's timeline felt more real to her than her own.
Schr÷dinger's Gun: The exact natures of both Harumoto's plot and the power that brought Sayori to the past vary depending on which ending you get. Furthermore, Ittosai becoming The Mole for Kasumimaru only seems to happen in his and Bo's paths.
Self-Disposing Villain: Kasumimaru jumps off the edge of a cliff after his arm is severed to avoid capture. Harumoto planted gunpowder in the watchtower specifically so that he could go out in a blaze of glory, rather than imprisoned and then sentenced to death.
Set Right What Once Went Wrong: Hatsuhime originally died before she ever escaped Kitahama Castle. When Sayori finds her pendant 150 years later, she is given the chance to save her.
Shonen Hair: Jin's hair is a mess. It does seem to obey gravity, though, so it's mostly a mess in his face.
Kasumimaru is capable of electrifying his sword. He uses it against Ittosai. In Yo's Good ending, Hatsuhime delivers an electric shock from inside the pendant to snap Yo out of his zombie-like state.
Ittosai himself also gets sparks around himself when using his special attack, Bare Blade Indiscriminate Slaughter. Nobumasa's attack is called Tiger's Roar Electric Shock. However, neither seems to actually cause electrocution to the victim of the attack.
"Shut Up" Kiss: In Jin's Good ending, Jin does this when Sayori says she's not as pretty as Hatsuhime.
Single-Stroke Battle: Occasionally. A particularly notable example occurs when Ittosai faces down Kasumimaru. The other guys have to spend a bit of time defending and getting their bearings after Kasumimaru's spell blinds them, but Ittosai, still partly in the throes of a Heroic BSOD anyhow, isn't fazed for a moment.
Stable Time Loop: Arguably all the endings, but especially Ittosai's Good ending. He rips through the side of the watchtower with his sword, and Sayori recalls seeing a battered sword in a history exhibit with the story of a split tower. However, in the original time line, Hatsuhime died long before, and so the watchtower would not have been blown up with Ittosai standing on top of it.
Standard Hero Reward: Considering that the Good endings have Sayori, usually still stuck in Hatsuhime's body, marrying or at least getting together with the guy, yeah. In Muneshige's Good ending, Hatsuhime's spirit must haunt her father for a week or two in order to convince him that it would be alright for the princess to marry a vasal.
Star-Crossed Lovers: The Bad endings often have Sayori mentioning how her love for the guy was never meant to be.
Stern Chase: Ninjas chase you through the forest and only occasionally catch up to fight.
The Stoic: Ittosai and Harumoto both play at this one.
Story-to-Gameplay Ratio: Heavy on the story end. Actual gameplay is minimal, limited to occasional opportunities for Sayori to make decisions on what to do.
Super Senses: Most of the guys are pretty good at sensing when a person is near, but Yo especially. He claims he trained to be able to sense people, but it's unclear if it's a case of hightened natural senses or mild Psychic Powers.
Taking the Bullet: Mon-Mon does this with kunai in one scene. He was wearing chain mail. Yo does this with real bullets in another. He gets better. And Bo puts himself in front of Nobumasa's spear if you make the worst choice on the last day, not that it helps anything.
Taking You with Me: Harumoto does this in the Good endings, climbing to the top of the watchtower with you and claiming he will make history by dying to rid the clan of Hatsuhime.
Talking in Your Sleep: Both Yo and Ittosai do it during their Bad Dreams, mistaking Sayori for the people they are dreaming about (Yo's mother, Ittosai's father).
Thanks for the Mammary: In Yo's Good ending, Yo mistakenly attacks Sayori, thinking she is a stray ninja. Guess where his hands end up?
Theme Music Power-Up: Each of the guys has two image songs. In all but one case, hearing one of these songs is a clue that the guy in question is about to do major damage. (The exception is Bo's "Oh My Love," a love song which plays during his Bad Ending.)
Training from Hell: Ittosai considers his father "a demon" for the training he put him through. And in Yo's Good ending, when Sayori says she wants to become a ninja like him, Yo warns her that the training is very difficult. This doesn't seem to dampen her spirits in the least.
Try Not to Die: Sayori's general reaction to splitting the party, though she's usually a little bit wordier in her pleas for them to stay alive. The guys occasionally get in on it, though in a more curt manner.
Tsundere: The real Hatsuhime has definite elements of this, particularly in regards to Muneshige.
Underwater Ruins: In the opening of the game, Sayori is wandering around the ruins of the castle in the modern world. Said ruins are normally submerged under a lake, but thanks to the drought, the water level is low enough that the history club gets a chance to go poke around in them.
Undying Loyalty: Nobumasa would do anything his older brother Harumoto asked.
Unlockable Content: Complete every ending with every guy to unlock a short scene called "CLUB Yo-Jin-Bo" in which the guys are all transported to the future and start a host club.
Unsound Effect: You occasionally get things like "Glitter!" and "Shine!"
Unusual Eyebrows: Mon-Mon and Harumoto's eyebrows split in two at the outer ends.
Wife Husbandry: Hatsuhime jokes that if she can't find a suitable husband herself, she'll marry Muneshige, who took care of her since she was a little girl. And, of course, following Muneshige's path ends up this way, though it's Sayori's mind that falls for him. Mon-Mon's Bad ending has the real Hatsuhime marrying Muneshige.
Worthy Opponent: The guys sometimes praise one another for being this; Nobumasa may also call them such.
Ye Goode Olde Days: Sayori never comments on the lack of modern comforts. In fact, she complains about the heat more in the first chapter, while she's still in the modern day, than she does after she's stuck in the past where nobody has air conditioning.
Ye Olde Butcherede Englishe: Upon realizing she's trapped in the 1850's, Sayori's first line is "I doth appologizeth." Muneshige is rather confused.
You ALL Look Familiar / Only Six Faces: Despite the numbers of ninja who attack you, there are only two faces. Despite the number of samurai, there are also only two faces. It gets especially funny when evil samurai and good samurai share the two faces.
Artistic License - Medicine: When Yo is shot, Mon-Mon sews the wound shut in a cave (at least he did have the sense to sterilize the needle in the fire first...). And Hatsuhime gets hit over the head, knocked unconcious, and wakes up with little more than a slight headache.
You Gotta Have Blue Hair: Muneshige, Bo, and even one of the unnamed ninja all have blue hair; Yo's is light green, and Harumoto's is purple.
You Wanna Get Sued?: Muneshige makes a joke involving Pikachu, and Yo tells him not to do that, because it's too close to copyright infringement.