Originally a series of Light Novels, Asobi ni Iku yo! was further adapted into both a manga and an anime. The anime series aired in the summer of 2010 produced by AIC. An OVA was released in the Spring 2011 season. Funimation, which licensed the anime under the name Cat Planet Cuties, has begun uploading the first episodes onto its own website and regular viewing sites like YouTube and Hulu. It is, however, rated TV-MA, so you need an account to watch it on the latter.One summer, a message from outer space is sent to Earth, carrying only the message "We're coming to play!", setting several organizations into motion.Kio Kakazu lives an ordinary life on the Japanese island of Okinawa with the girl next door, an old friend he watches movies with, and his party-loving uncle. At a funeral for his grandfather, he meets a Cat Girl named Eris, who claims that her ship crashed near the site, and was looking for some food. Surprised, Kio accidentally takes a sip of his uncle's beer and passes out immediately. A few hours later, he wakes up to find Eris sleeping in his bed. She is a Catian, one of the aliens who sent the original message, and she's here to learn all she can about Earth. However, both she and Kio are unaware of the organizations close to them that want to investigate the aliens for reasons unknown.no relation tocat planet!
Asobi ni Iku yo! provides examples of the following tropes:
Achilles' Heel: The Dogisian Goujyuu Powered Armor has two of these. The first is a physical weak point that functions as a kill-switch when struck, shutting the unit down. The second is an automatic shutdown that occurs if the user tries to attack a Dogisian.
Also the Catian Latex Spacesuit deactivates when the user is 'In heat', with no visible Override Command. While it is a safety measure, it also can leave the user vulnerable.
Action Prologue: Shows Aoi in action, and one of her many missions where she actively kills people.
Adaptation Distillation: The anime covers the 7 volumes of the manga published so far, but the light novels that the manga is based on are up to 15 volumes and still going. The anime covers the first four light novels, with the ending borrowed from book 6, Momiji's opening action in episode 1 scene adapted from a flashback in book 9, and a side story from book 9 used as episode 9 (Lawry). In the first 10 books, at least, Manami is not a haremette, so a lot of scenes in episodes 3, 6, and 8 are original.
Adorkable: Kio. Manami calls him an otaku but the other girls point to her that it's a part of his charm.
All Part of the Show: Aoi and Manami set out to rescue Eris and Kio, while the director they stole the boat from keeps the cameras rolling, despite his crew's warnings that the show was not according to the script.
All Your Base Are Belong to Us: The Dogisian Assistaroids taking over the Catian mothership in episode 10. The command staff manage to avoid capture by shifting the bridge out of normal space-time, but they're effectively trapped there until they can be rescued.
Always Chaotic Evil: The Dogisians, according to galactic law. The one we've seen so far is an alien arms dealer, and trading with them is deemed illegal.
Angels Pose: Done (minus the silhouette) by Aoi, Manami and Eris in the opening.
Anime Accent Absence: While the aliens speak perfect Japanese, Jack, Manami's friend from the Company, has a significant accent to hers. Almost all the Earth-native characters speak Kyushu dialect, as well.
The Shimaneko (Striped Cat) Delivery Service counter in Episode 4. Notable as the same episode had earlier included a Shout-Out to the delivery service being parodied, Yamato ("Kuroneko"/"Black Cat") Transport.
Boobs of Steel: Whilst most of the Catians count thanks to their Powered Armour and... generous figures, the Dogisian arms dealer Jens probably takes the cake.
Breather Episode: Episodes 3, 6, and 9, all of which follow (and lead into) episodes that contain a lot of action and suspense.
Bridal Carry: Kio does this to save an unconscious Aoi in episode 5, much to the latter's delight once she starts to wake up.
Buxom Is Better: Both Itokazu-sensei and Manami react to Eris with "Those aren't from around here." Aoi just goes "Imported?!" Becomes a plot point in Episode 7 Aoi's jealousy of Eris comes to the fore, and this is one of the points Aoi is jealous of.
Cat Girl: Eris, and several other members of her species, are part of the cast. Taken to the point that the only other male Catian in the series aside from Kio in episode 12 is only shown in a flashback, and we only get to see his chin. According to the novels, the Catian female/male ratio is 30:1. No wonder Eris is so quick to suggest sharing Kio, as it's most probably the norm among Catians.Ichika is also a cat girl with real cat ears and tail as revealed in The OVA and on the light novels
Clingy Jealous Girl: Manami, although she won't admit it. Gets a little interesting in episode 2 as she spies on them talking. Several times as she's listening in on their conversation, she ends up snapping pens in her hands as she hears some of the things Eris says to Kio.
Eris gets a little jealous in episode 12, when she sees both Aoi and Manami kissing Kio before their Suicide Mission, which prompts her to also kiss him.
Crazy-Prepared: A few characters usually seem to have exactly what's needed for a particular incident, especially Kio's uncle, Manami, and Aoi.
Crowd Song: With Lawry singing only a few bars, the entire cast starts harmonizing to Captain Future's "Oira wa Sabishii Spaceman", no matter where they are. It's worth noting that the dub went to the effort of translating and having the entire cast sing the song as well.
Defeat by Modesty: When Manami and Aoi's training is interrupted by a sniper and her spotter, they counter with their convenient clothing-erasing bullets and send them running with nary a thread between them. Well, not running, per se — as in the next scene we see they've been shipped back to Jens in a wooden crate, only wearing some onmyodo tags.
One law strictly enforced by Orsonians is that of copyright.
Doctor Durel is quick to point out that the Captain Future Insert Song can be purchased online.
Diplomatic Impunity: The reason Aoi and Manami aren't arrested for treason: the Catians essentially give them political asylum to keep them from being arrested, making it something of a subversion as it was protection that was applied after the crime rather than an attempt to use a diplomatic position to get away with criminal behavior. Played straighter when Manami tries to justify her and Aoi's jobs as SP and the fact that Kio's house is now the Catian embassy site as an excuse to let her shoot off, but Kio would have none of it (check Japanese laws and cultural attitudes on guns) and wouldn't take her excuse.
Don't You Dare Pity Me!: Aoi tells this to Manami when the latter continues to insist on trying to hook her up with Kio, even though they have a slightly more pressing matter of attempting to get into space and stop the Catian mothership from crashing into Earth.
Driven to Suicide: Assistaroids are programmed to do this if they are given an impossible command unless given a verbal override in 10 seconds. Aoi's samurai-themed Droids, upon realizing they can't perform a quick draw stunt due to a lack of the necessary fingers, immediately try to commit Seppuku.
Emergency Transformation: Since the Catians' ship won't take direct orders from a non-Catian and Kio is the only one with the authority to give orders, Kio has to be transformed into a Catian to save the day.
Evolving Credits: Not so much evolving as the ending alternates every time, though there is a unique ED in Episode 9.
The Assistaroids in the opening credits change constantly, reflecting episodal changes.
Exotic Extended Marriage: The Catians have no issues with a male choosing multiple mates. This becomes relevant to the plot when Kio's house is converted into the official Catian embassy, leaving Kio free to marry all three of the girls in love with him.
Freeze-Frame Bonus: The files on Kio, Eris, Aoi, Manami and Itokazu-sensei briefly seen in episode three come with a lot of info on them, some of it trivia (like Itokazu-sensei's reason for her love of Hard SF) and other really interesting (like Aoi's surprising family circumstances).
Godiva Hair: Most of the Catian crew are subjected to full-frontal nudity at some point or another. Their tails just oh-so-conveniently cover up their crotches, and only just barely.
Gratuitous English: In the Japanese dub of episode 7, a guy riding a sports car stops near the beach, and says "rice rocket" as well as shit, right after a dog droid rips the top part of his car off and right before it knocks him out.
Half-Human Hybrid: Episode 3, in a blink-and-you'll-miss-it reference; according to the fine print in Aoi's DIA file, she has an alien half-sister who is older than her because of a Time Dilation Field.
Hammer Space: The bells worn around the Catian's necks. The captain's bell, which gets handed to Kio later on, seems to be even more awesome than even Eris's bell.
Harem Hero: Kio is a Type 1, although he wants to be a 2A. Unfortunately, Eris doesn't seem willing or able to show him how to fight (probably justified in-universe since the Catians don't have a treaty with Earth yet, so may not be seen as "legal"). Aoi teaches him how to shoot in one episode, but he never puts the training to use outside that one scene. Also, both Aoi and Manami seem more interested in figuring out his feelings for them.
Healing Hands: Eris's cell phone thing can fix minor head trauma and presumably much more.
Heroic Sacrifice: Aoi and Manami both attempt one to prevent a space station from crashing and obliterating Okinawa.
However, it doesn't stop her from buying Onmyodo tags on the black market, or using them effectively against the Catian mothership in episode 10.
Humongous Mecha - Unyuu from Episode 4 is turned into one of these in Episode 7, in a attempt to make him "feel like a real Assistaroid". He even comes with a missile launcher and Frickin' Laser Beams - which get used.
I Just Want to Have Friends: Antonia, once Kio calls one of her maids out on it during episode 5. Up to that point, she was wondering why despite having a lot of money and anything she could ever want, whether it was a devoted cult/fanbase, and a Maid Corps who was ready to serve her every need, she still felt somewhat empty inside. Once Kio brings up her lack of friends, she decides to help them out, and later genuinely becomes friends with them, and seems to get better.
Imperial Stormtrooper Marksmanship Academy: Both the random mooks and even the Ninja Maid squad can't seem to shoot straight at all, like shooting full auto in a narrow train carriage without hitting anyone. The only time the unnamed mooks can hit anything is when the target is invulnerable. In part, this is a example of Truth in Television — as anyone who's ever fired a full-auto weapon knows...there's enough jitter caused by the multiple recoils as to make perfect (or even reasonable) accuracy nigh impossible.
Improbable Aiming Skills: Aoi, with the most spectacular example probably being when she neutralizes a sniper round aimed at Manami by shooting her with an anti-matter bullet at exactly the right time and placement for the clothing-erasing effect to absorb the shot.
Innocent Aliens: "We've come to play", and they mean it. And Eris keeps using porn as reference for Japanese etiquette.
Innocent Fanservice Girl: Eris sees no problem walking around the house in a partially-buttoned shirt. Nor do the rest of the Catians.
Ironic Echo: "It's alright, it's not like you'll lose anything if we saw it."
Isn't It Ironic?: Jens says that she doesn't want her race to die like dogs. She points out the irony.
Love Confession: Invoked in episode 7. While at the beach, Kio asks Aoi if she could do something for him, and they take a walk down the beach. Romantic music plays in the background, and Kio says that he's thought long and hard about it, and that Aoi would be the best choice... to train him to fight. The music cuts abruptly as Aoi says "huh?"
Love Epiphany: Manami has one during episode 6, while conversing with a Kio replica in the Catian holodeck, who tells her that he's always liked her, but never took it to the next stage because he thought her calls to a "Jack" meant she was seeing someone already. She sheds a few tears as she starts to realize her feelings for him. Luckily for her, Eris is more than willing to share him with both her and Aoi.
After rescuing Eris, Kio gets his face buried in her chest.
In the OVA, Kio briefly gets subjected to a Marshmellow Pie Hell when his head is trapped between Manami's chest, Aoi's butt, and Eris's next move during a game of Twister. All three girls are aware of it.
Becomes FAR more literal in Episode 10 when the Dogisians take a far more...active role in trying to get rid of the Catians. That is, if you define a sneak attack on the Catians' ship that's sent it into a collision course with Earth, the Captain of said ship being neutralized by Dogisian Assistaroids, and Kio being left in command by said Captain as being a "bit more literal"
Mecha-Mooks: The Assistaroids employed by both sides. They do show some intelligence and emotion, though (at least the Catians'); most of the Catian Embassy's Assistaroids are named, or at least numbered to differentiate them.
Episode 10 as well - Seems to start out as a standard angsty Christmas harem episode - ends with the Catians' ship about to crash into Earth, the Captain having been infected with mind-stopping nanomachines, and Kio about to take command of the situation and save the day. All in about 15 minutes. Whew!
The Mole: Manami's father works for the CIA, and she begins spying on Eris in the first chapter/episode.
Narrator: Ichika narrates throughout the whole series. It's only revealed that it was her in the OVA, when the other characters have to point out that she missed her cue to continue expositing the story. She pulled out the script of the show and starts reading from it for the rest of the episode, including one scene where she's reading the lines for the show itself in a recording studio.
New Transfer Student: Eris, Antonia, Sara and Maya. Antonia shows up with bread in their mouth, mistakenly believing (because of reading shojo manga) that it is a Japanese custom for new transfer students to do so. See the Late for School trope for more information on the "bread in mouth" convention that Asobi ni Iku yo! pokes fun at.
Nice Guy: Kio; he sure keeps his own Porn Stash but he is pretty much "look-but-don't touch" type. He is really scared when Eris tried to sleep with him.
The girls at his Film Club outright call him this and put him in the "diamond-in-the-rough" category.
Aoi, earning her the codename Akuun Momiji - Bad-luck Momiji. (a few times in the novels, her codename is given as Akuen Momiji; her English-speaking enemy in book 9 translates that as "Calamity Momiji")
Eris's service drones. They can withstand being shot down in a helicopter by a tank with nothing worse than a few scorch marks. They're essentially Servbots with a cat theme.
No One Could Survive That / Not Quite Dead: The pirate captain in episode 1, who supposedly died when he blew up the ship, somehow survived and is seen in episode 11. He goads Aoi into shooting him, saying she's nothing more than a killer, which Aoi promptly complies with. Luckily for him (maybe), she had Catian ammo loaded, so all that happens is he loses his gun and some of his outfit.
Aoi should probably have been crippled or killed after she fell out of the moving subway car, but she didn't even end up with any bruises or abrasions other than some scrapes on her left arm when she stood up immediately after getting kicked off. Her fast recovery is noticed later on.
Now or Never Kiss: Aoi first gives Kio one of these causing Manami and Eris to get jealous and kiss him as well.
The Nudifier: A theme in Catian weapons design seems to be to neutralize your opponent's weaponry non-lethally. They often simply erase anything they hit that isn't living tissue.
Oblivious to Love: Kio (justified given how much effort Aio and Manami put in trying to convince him that they're only interested in him as a friend- he's far less oblivious to Eris's very very obvious romantic interest).
In Episode 5, an obvious cue (looking back) for a Fanservice scene is skipped to set up a twist. Kio and Eris exchanged clothes so Kio can use Eris's power armour and make an escape, Eris's idea.
Only 0.2% Different: There's only a 0.00001% (One One-Hundred-Thousandth) difference between Catian and Human DNA. This plays a plot point in episode 12.
Opening Narration: Not the show's own, though. The show uses modified versions of other shows' opening narration. If you didn't even know some of the listed shows had a narration, they did in their Japanese dub.
Oral Fixation: Dr. Durel is almost never seen without something in her mouth.
Overly Long Name: If you think JACK was that long, that is not the longest one. The record right now goes to Antonia Lirimonie Norfedras Papanorgas Arecroteles Cnorses Morfenoss.
Parental Abandonment: Aoi's parents kicked her out after finding out about her apporting abilities. There might be more to the reasons why her parents left her behind if the DIA file on her from Episode 3 is accurate.
Pervert Revenge Mode: Manami can skirt the line between this and Unprovoked Pervert Payback when Kio sees her in unfortunate positions. Really, beating the guy up for walking into his own living room? Or coming running to help you after hearing gunfire in a public street?
Polyamory:: Having more than one mate is not taboo on Catia, so with Kio's house being the official Catian embassy, its soil is Catian territory, and therefor all three girls can share Kio without any problems. Kio doesn't seem to mind this decision... too much.
Porn Stash: Kio has a few magazines. Not very secret, though, as even Manami knows where they are. And Eris keeps finding them... and using them as cultural references.
Powered Armor: Aoi's Goujyuu Powered Suit. Also Eris's Latex Spacesuit is a light version of one. Jens has the same type as Aoi's. Turns out that the armor is actually Dogisian (Jen's race) technology.
In-universe, Kio's friends in the Movie Club call Eris "too unrealistic" an alien for their movie. Undeterred, she gives them a flyover: whereupon the cameras pick up the ship's energy emitter probes (necessary to stabilize it for low-velocity atmospheric flight), which just happen to look exactly like strings suspending the ship. They then ask if she has an advanced robot, and she brings up an assistadroid, which they also lament looks more like a toy than an actual robot. Given an Ironic Echo in the OVA when the Movie Club considers putting together another science fiction movie and decides that having a Starfish Alien or silicon based life form just isn't realistic compared to the already known Catians.
Also Itokazu's group wanted to get rid of Eris at first just for THIS reason alone.
Aoi gives a passionate one to Eris on the beach, stating all the reasons Kio would choose Eris over her. Eris responds by hugging her and telling her that she knows how Aoi feels, then they get interrupted by a dog attack before Aoi can respond.
Manami also gives Eris a tongue-lashing in episode 12, stating similar reasons to Aoi about how she came in and "stole" him away from her. After hearing her gripes, Eris smiles, and suggests the three of them sharing him, which immediately shuts both of them up. Cue a confused Kio wondering what's going on.
Reckless Gun Usage: Manami displays face-palmingly poor trigger discipline in episode 6, waving a revolver in Kio's face with her finger on the trigger. The gun had just been emptied, but that's no excuse: and she only gets worse later, when she loads the revolver and waves it around in a fast-food joint, once slamming it down on the table while pointed at Aoi. It was quite justified that even though Manami is a gun nut, it was shown that she barely know how to handle guns. And seemingly Kio is better at marksmanship than she is.
Red Oni, Blue Oni: Manami (red) and Aoi (blue). Made explicit in the opening theme, as each of them are shown washed to their respective colors. Also, both girls serve as blue to Eris's red.
Rubber-Forehead Aliens: Catians and Dogisians perfectly fit the trope. In the first episode, disbelief in Eris's species is expressed because she looks indistinguishable from a catgirl cosplayer. It doesn't help that she has both human and cat ears. Later in the same episode, Eris points out that her species was also rather shocked at how similar their race looks to Humans. In fact, they originally called themselves Earthlings and their planet was called Earth before they learned about Earth. Being the more advanced race, they decided to be courteous and rename their planet to Catia.
This is also one of the main reasons the conspiracy group First Contact wants to get rid of them, because they want Earth's First Contact aliens to look more alien.
Scenery Porn: It's like a vacation brochure for Okinawa. The author of the light novels is a native of Okinawa and is proud of his home.
Serious Business: The OVA involves everyone in the main cast playing various games, with prizes on the line that are either precious or embarrassing for each of the contestants. Given what's at stake, Aoi and Manami are particularly desperate to win.
School Swimsuit: The Catians actually hold a conference in them at Eris's suggestion (which was, in turn, Kio's porn stash's suggestion).
Manami tries to ship Aoi and Kio. However a bit of a tragic twist as she is only doing this because she believes she lost her chance to be with him.
In episode 12, Eris basically switches to suggesting polygamy and she gets it.
Shoot the Messenger: Subverted and lampshaded. Aoi nearly killed her driver at point blank and clearly stated that she purposely missed because she just let him off the hook.
Shrinking Violet: Aoi in attitude, though her past as an immigration bureau agent would make one think otherwise. This is more of a Japanese cliché that's seen in multiple shows — the person put through Training from HellSacrificed Basic Skill for Awesome Training; these skills having been deemed unnecessary by the people doing the training. Multiple examples of this exist all through Japanese anime - and Aoi's no shrinking violet when the action starts, she just doesn't know anything at all about intimacy, or boy/girl relationships.
Special Effects Failure: In-universe example - in the OVA, the movie with Aoi and Manami in it has a guy in a rubber suit which catches on fire, which seems to be accidental. The guy in the suit even pats one of the fires out.
Squee: Eris has this reaction for just about every tasty Earth food she's eaten, so she does this fairly often. In fact, her reactions were so good, everyone on the Catian mothership decided to visit Earth based on her food analysis report.
Starfish Aliens: Noteable by their absence, at least as far as races we've SEEN goes (the Orsonians may be a different matter, though) - much to the frustration of the Beautiful Contact Society, who go as far as deciding to threaten and - if necessary - KILL earth's first alien contact (as far as they know), simply because she doesn't fit their idea of what an alien SHOULD be.
Strip Poker: In The OVA, The Female Catia Cast play strip mahjong and strip poker, and there is strip chess with Jens loosing to Muttley as well as strip rock paper scissors with Kio and some of the female cast, and Kio is winning (he was blindfolded and they kept using scissors to his rock).
Sufficiently Advanced Aliens: As incredibly advanced as Catian technology is by our standards, the unseen Orsonians scare the crap out of pretty much every other space-faring race out there.
Super Multi-Purpose Room: The Catians have a multipurpose virtual reality room capable of producing any type of environment and simulating anything... or anyone.
Suspiciously Specific Denial: There is no-one inside the Earth-made Assistaroid suit. It is a robot that was created and there is no-one inside. Despite this, both Kio and Eris know Antonia is inside that "robot", but they largely play along until the end.
Taking You with Me: The pirate boat captain tries this on Aoi when he blows up his ship in the beginning of episode 1. Except that both of them survive.
Antonia, Melwyn, and Ichika. It's hard to tell if Chaika is this or just flat chested.
In the light novels, Chaika has three daughters; the youngest is 3-4, the oldest 16-17. She and Kuune were childhood friends. Ichika, on the other hand, is an immortal catgirl sage created hundreds of years ago on Earth with magic. Melwyn is 12.
Tomboy: Manami said that when they were young, Kio was shy around women and she was able to get along with him due to her unfeminine personality..
Uncanny Valley: invokedThe Assistaroids' current appearance is a conscious effort to avoid this. Lawry, an older generation humanoid Assistaroid, explains it to Kio in a manner that wouldn't seem out of place in Chobits.
Unusual Ears: Becoming more so now that more races are being introduced. If you look, you'll see that the Catians have four ears — the two cat-style ones on the tops of their heads, and two very human-shaped ones in the usual places — usually covered by their hair.
The assist droids are out in the open, and the people of Okinawa barely react. When they do, it's usually a quick, positive acceptance based on their cute appearance.
Unusually, Eris's unusual body parts also seems to be ignored by a lot of people. Lampshaded by Manami. Since Catians have FOUR ears, with two very human-looking, it's easy for Catians to pass as human cosplayers with good costumes. Slips into Uncanny Valley when it's forced on the humans' attention that these are indeed real aliens — such as in the diplomatic negotiation in episode 3. School swimsuits didn't help there at all.
And then there was one time Manami kept waving a revolver inside a regular restaurant. No-one really reacts about it.
Unless some major peace/alliance treaties were signed in this universe, it's a bit odd that there are NATO tanks and helicopters on Russian soil. They sort of try to justify it in-universe, but it's still kind of Hilarious in Hindsight that the Russians are allowing M1 Abrams tanks and Apache helicopters to roam on their lands like that.
The Dogisians have THAT MUCH political power. It's the reason why Antonia could not book a flight with a rocket anywhere in the entire world.
Verbal Tic: Rulos, Eris's ship AI ends most sentences with ~deshi. Also, in the English dub, both the Catians and Jens are very prone to using cat and dog related phrases ([Okinawa cuisine] is the cat's meow, the Dogisians are forbidden to engage in interplanetary trade so they must have dug under the fence, ect).
What the Hell, Hero?: In episode 11, a terrorist seen in the first episode comes back and calls Aoi out for being a Tykebomb who's spent her life killing without love for the country that made her that way, and now she's fighting for a world she's never even seen. She eventually says Shut Up, Hannibal! and dissolves his gun with Catian bullets. Borders on a Subverted Trope — there's a trope overused in action movies where the victim tries to (and succeeds) in guilting their captor into letting them go by bringing the captor's faults to their attention. In Aoi's case, it fails — as the expression on the terrorist's face reveals.
You Are in Command Now: Happens to Kio when the Catian ship captain hands him her bell after falling unconscious to a Dogsian ambush. Cue salutes from the Catians, the droids, and shocked expression on the humans.
You Are Number Six: Played literally and said word for word in the subtitles in episode 3 when the Assistaroids are numbered to make them easier to use, number 6 is the one we actually see being assigned a number.