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Love knows no bounds. Not even having skin on your head.
Interspecies Romance in Anime & Manga.

  • In Ah! My Goddess, Belldandy is a Goddess and Keiichi is human. Although they both appear human, technically they are of different species. The manga later mentions that Belldandy is actually a neutrino projection or something.
  • Chise (a human witch) and Ellias (a deer-headed-demon-...thing) of The Ancient Magus' Bride.
    • There is also Joel, a human, and a Leanne Sidhe, a vampire fae who would drink the life force of the men they fall in love with in return for artistic inspiration. This Leanne Sidhe told Chise that she didn't love Joel out of fear that he would die, but realized too late she had fallen for Joel anyways and was slowly killing him regardless.
  • There's two cases of this in Animal Yokocho. Issa the panda sometimes wants to be the main character Ami's boyfriend, and Kenta the bear and Ami's friend Ku are openly in a relationship. Sure, Issa and Kenta are technically stuffed, but they're obviously sentient...
  • Armitage III has Ross (a human) get together with Armitage, who's a third.
  • In the second season of Bakugan, Lync (a vestal) develops a crush on Alice (a human) after she gave him food and shelter while he was stranded on Earth. How she feels about him is unclear as most of their time living together was off screen, and the few times it was showed her getting annoyed with him, but she was clearly heartbroken upon realizing he was most likely killed for trying to warn her about King Zenoheld’s plan to destroy both their planets.
  • The 1977 animated short Bara no Hana to Joe (The Rose Flower and Joe) is about a homeless brown dog named "Joe" who develops a romantic relationship with a pink rose. While the rose flower isn't an animal or a living being, there a moments where the Rose is sentient such as giving Joe a kiss after saving her from a meanspirited crow. The short is based on a children's book by Takashi Yanase with Sanrio Animation animating the short.
  • Beastars features the predator-prey relationship of Legosi (wolf) and Haru (rabbit). Being the setting that it is, their animal instincts and social pressure are a huge obstacle in their relationship, which Legosi constantly tries to fight. It is also later revealed that Legosi isn't a pure wolf as his maternal grandfather was actually a Komodo dragon so being attracted to people outside of his species may run in the family. The manga has also teased a possible relationship between Louis (deer) and Juno (wolf). And before she started her relationship with Legosi, Haru had sexual relations with males of many other species including Louis.
  • Bizenghast looks headed this way with Dinah (human) and Edrear (humanoid... bug... construct... thing). Edaniel also claims to have dated a human agent.
  • This happens a lot in Blue Drop, what with all the couplings between human women and Arume. Somehow it results in Half Human Hybrids, despite both parents being female and both parents being of different species.
  • In Blue Submarine No. 6, Hayami has a semi-star-crossed romance with the mergirl Mutio.
  • In The Cat Returns, a girl called Haru, who has a long-suppressed ability to talk to cats, saves a darkly colored, odd-eyed cat from being hit by a truck on a busy road. The cat turns out to be Lune, Prince of the Cat Kingdom. In return, the cats shower her with gifts of catnip and mice. She is then offered the Prince's hand in marriage. Her mixed reply is taken as a yes, much to Haru's dismay. She later develops a crush on the Baron, a living cat figurine who promised to help her get out of the arranged marriage.
  • In A Certain Magical Index, Touma Kamijou's Unwanted Harem includes Hyouka Kazakiri, an artificial angel, and Othinus, a goddess.
  • Chobits is mainly about the (usually-romantic) relationships between (usually-male) humans and (usually-female) persocoms [i.e. humanoid robot servants]. So obviously, there's lots of couples: there's Hideki and Chii, Ueda and Yumi (the persocom, not the human), Minoru and Yuzuki, and even the one-sided tragedy of Freya and Ichiro.
  • Claymore is an anime in which human-eating demons called "Yoma" chased by warriors, which also are half a Yoma himself. A part of the plot revolves around the warrior Clare meeting a boy named Raki. First he only accompanied them, but later they fall in love.
  • In the manga version of Chrono Crusade and its subsequent anime adaption, the friendship between Chrono (a demon) and Rosette (a human) unsurprisingly develops into this. Although the anime is much more upfront about it, as wherein the manga the change is gradual and doesn't even happen until the second to last chapter in the final volume where Chrono kisses her goodbye as he leaves to face Aion alone. Both continuities end tragically for them.
    • It's later revealed that in the past, Chrono's first love was a human woman named Mary Magdalene, who became his first contractor in a desperate attempt to save his life and later died because of it. The anime version turns this into a Reincarnation Romance.
  • Kazuya and Erika from Daimos. He is human, she is a alien Winged Humanoid, and both of them are Starcrossed Lovers because their planets are at war. However, Kazuya refuses to hate Erika for the actions of her race, knowing that the violent faction attacking Earth doesn't represent all of them and good and bad Baam exist.
  • Daltanious: Kimiyo and Hayato Tate, unknowingly, had such a romance. When she married him, she did so believing he was an ordinary human like her. Hayato actually happened to be the amnesiac long lost Alien Prince of Planet Helios, something even he didn't know at the time of their union. By the time he finds this out, Kimiyo has died, and Harlin tearfully apologizes to her spirit in the rubble that used to be their home.
  • In DARLING in the FRANXX, we have Hiro (human) and Zero Two (klaxo-sapien/human hybrid). This is later subverted when Hiro transforms into a klaxo-sapien/human hybrid as well, making him the same species as Zero Two. Nonetheless, their relationship's backstory and progression becomes pivotal to the series' plot, especially from Episode 13 onwards.
  • DearS is arguably an Expy series of Chobits, execpt replacing mostly-female A.I. Persocoms with mostly-female E.T. DearS. The main difference though is it's in the harem genre, so the main romance(s) are between Takeya with Ren and Miu And in the Marry Them All manga ending, the rest of the group of DearS, all-female and a majority of the population, who opted to continue voyaging in Space rather than reside on Earth.
  • Death Note has Gelus and Misa, and later Rem and Misa, though in both cases the attraction is entirely emotional and entirely one-sided. And then Rule 36note  of the Death Note averts this trope entirely (at least sexually).
    Death Note Rule XXXVI: "There are male and female gods of death, but it is neither permitted, nor possible for them to have sexual relations with humans. The gods of death also cannot have sex with each other."
  • In Devilman we have a Love Triangle between Akira, Ryo and Miki, where Miki is a human, Akira contains both human and demon souls, and Ryo is Satan.
  • Digimon is a mostly No Hugging, No Kissing anime, with loads of characters, only three Official Couples (not counting the Gainax Ending to Digimon Adventure 02), and a lot of Ship Tease. Since the Digimon look like individual species like Pokémon: The Series, the teased Digimon/Digimon couples (Veemon and Gatomon, Impmon and Renamon, and Beelzemon and Mervamon) would seem this if they ever became canon, though they are all data with just different forms so they are all technically the same species.
    • Not to mention any Digimon/human pairings. The most famous one is the hinted one between Daisuke and Natchan from the Digimon Adventure 02 CD Drama Natso e no Tobia (Door to Summer).
    • On that note, mention must be made of Bastemon (Beastmon) in Fusion, an Animal Digimon (and princess) who is clearly crushing on the human Taiki (Mikey) and wastes no time in getting cozy with him like an actual cat would with its master (complete with a Luminescent Blush from the boy). This is actually a plot point, as the princess's advances add to Akari/Angie's insecurity issues, making her susceptible to Lilithmon/Laylamon's More than Mind Control Magic Mirror.
  • It's unclear if the various Little Bit Beastly races of Dog Days count as separate species (given that they're all refered to as humans), but several of them are shown to have a crush on Cinque. If they are different species from one another, then Leaf's Precocious Crush on Leo would count as well. It's also all but stated that Valério and Adelaide are a married couple (as well as Couvert's direct ancestors).
  • Dragon Ball:
    • Oolong (a pig) kidnapping girls from a village and interest over Bulma (all human girls).
    • Goku & Chi-Chi and Vegeta & Bulma are both Saiyan/Human pairings.
    • Later, there's Gohan & Videl (Half-Saiyan/Human), and in GT, Goten also has a human girlfriend.
    • In the OVA Dragon Ball: Yo! Son Goku and His Friends Return!!, Vegeta's long-lost brother, Tarble, comes to Earth from a distant planet with his wife to warn him of a (not-so) dangerous new threat. Of course, you wouldn't guess that he was married to Gure by looking at them, since he's a Saiyan and she's a distinctively non-human (or Saiyan) -looking alien who barely comes up to his waist.
    • In Dragon Ball Super, it's implied with Future Trunks and Future Mai (half-saiyan/human), with both showing signs of love for each despite them denying it, even with both Vegeta and Goku being able to see the romance.
  • Dragon Half:
    • The half-dragon Mink is in love with Dick Saucer, a popular dragon slayer.
    • Princess Vina is Mink's main love rival and a slime-half.
    • As said above, Mink's parents are this. In fact, Mink's dad was supposed to slay a dragon, not marry her!
  • Durarara!!: Celty and Shinra, the former being a Dullahan (a headless Irish death fae) and the latter being a somewhat eccentric human scientist.
    • Later: Shizuo's brother Kasuka dates his fellow idol Ruri Hirijibe, who turns out to be part-Dhampyr.
  • In the anime Elfen Lied Kouta meets Lucy. He is an ordinary boy, but she is a "mutant", a Diclonius. The anime shows clearly that they love each other dearly.
  • Eureka Seven: Eureka and Sakuya are Coralians that were created to test whether it is worthy for Coralians to coexist with humans and they fall in love with humans. The series takes this interspecies love approach seriously as Eureka constantly condemns herself for not being human and fearful of her lover Renton leaving her because of this issue, especially since their race are at war with each other.
    • In the sequel, Eureka effectively renounces her identity as a Coralian. Peaceful coexistence between humans and Coralians proving impossible on account of Scub Corals mindlessly assimilating everything they touch like a virus, Eureka decides to help Renton exterminate the Scub Corals. The fact that the Trapar waves the Scubs produce killed their first child and forced them to hide away their second probably had a lot to with it.
  • Fullmetal Alchemist has Fuhrer King Bradley (Homunculus) and his wife (human), and it is stated that he loves his wife and sees that as the only choice he ever really had in his life (although in Fullmetal Alchemist (2003) it's left ambiguous as to whether it is a front or not).
  • In Ghost Sweeper Mikami, Yokoshima goes after anything with a good looking female form. ghosts, robots, demons, dragon gods, wolves, foxes, etc.
  • The Great Snake's Bride: The story is about the budding romance between a human woman and a giant snake after the former's village forcefully marries her to the latter.
  • Gundam Build Divers Re:RISE defies the Gundam franchise's traditional Absent Aliens hallmark and gives us not one, but two interspecies couples.
    • Kazami (human) develops an increasingly close relationship with Maiya (a dog-like Humanoid Alien) over the course of the series. The ending implies that they Hooked Up Afterwards.
    • Hiroto, also a human, turned out to have one of these with Eve, an EL-Diver, before he was forced to delete her by her request. Naturally, it and the subsequent war over another EL-Diver broke him rather badly. Interestingly, Eve's data and the feelings and bond she shared with Hiroto caused the creation of a new EL-Diver, May, effectively making her their figurative daughter.
  • Himawari! gives us Yusura and her boyfriend Yonezawa, a kappa. Thankfully, he is the cute, friendly, anime-version of a Kappa, not an organ-sucking river monster. And they both love cucumbers...
  • Hunter × Hunter gives us a particularly tragic one between Komugi, a blind gungi player and Meruem, a humanoid Chimera Ant.
  • Happens all over Hyper Police: Natsuki is the product of this (Human/Goddess), Sakura (kitsune) has children with the timelost (human) samurai. Batanen (werewolf) has a huge crush on Natsuki (Half-human Cat Girl), and Tommy (werewolf) has 19 (!) children with Poe (Human) in the manga.
  • The whole premise of Interspecies Reviewers is this. A human, an elf, an angel and a bonus character travel to different brothels that species of different girls work at and have sex with them. The reviewers then write a review of the brothel and girls, ending with a score out of ten. They end up making money from posting these reviews, so they can afford to go to more brothels to review more girls.
  • Played with in Inukami! anime: During a Love Potion incident, Keita thinks about getting some interspecies loving with Youko and/or five of the other girls, until he realizes his kids would be half-dog, and is promptly disturbed about the whole thing. Kinda odd though since he knew at the time that Youko is a kitsune. The end of the Manga definately implies that a wedding is in the future for Keita and Youko.
  • In Inumimi, Yuichiro doesn't seem to be too interested in his dogs-turned-human (he pretty strongly averts All Men Are Perverts), but Elga at least seems to have a (non-sexual) interest in him. (And Emina is not happy about it.) Now that she is human, Yuichiro feels uncomfortable with the same kind of physical contact compared to when she was a dog, leaving Elga feeling heartbroken and unloved. Rino blasts him for not being willing to return Elga's (platonic but unconditional) love for him, after which Yuichiro realizes she is "still Elga" and gives her the pats, hugs and cuddles she's been missing. Once she understands the whole story, Emina is almost entirely accepting of the situation. The whole thing avoids, inverts or averts a whole bunch of expected tropes, including this one.
  • Inuyasha:
    • Inuyasha is the product of a dog Youkai and a human. He later goes on to have a romantic relationship with two human girls, ultimately marrying one with whom he would have a quarter-demon daughter in the sequel series. Given the number of half-youkai he runs into during the series (and a very enamoured wolf-youkai), it seems that humans are a common youkai fetish, and vice-versa.
    • Shiori and Jinenji, two characters that Inuyasha and Co. befriend, are products of this trope. Shiori's father was the prince of a bat youkai tribe, whereas Jinenji's father's species isn't mentioned (but due to his size, it's been speculated that he might have been a horse youkai).
    • In one episode of the anime, a human woman named Princess Sara falls in love with Sesshomaru, Inuyasha's youkai half-brother.
    • A Magical Girl Warrior was in love with a youkai and they became a Battle Couple. It ended up in tears. And later, when the youkai male opposes Inuyasha and his group, the woman's spirit possesses Kagome's body to try talking her ex-lover down. Again, in ends in tears.
    • Shippo, a kitsune, falls in love with a human girl in one episode. And later, in another one a girl lizard youkai falls for him.
    • Koga, a wolf-youkai, has an unrequited crush on the human Kagome. He marries a full-blooded youkai girl later, however.
    • Later in the series there is the Horai-Island. Long ago there lived together peacefully humans and youkais, and had many hanyous as descendants. A flashback shows that romances between youkais and humans were very common on this island.
    • In the sequel series Yashahime: Princess Half-Demon, it is revealed that Sesshomaru had married Rin, a human and they would become the parents of half-demon twins Towa and Setsuna.
  • Crops up in Jewelpet, in various forms. There are different species of Jewelpets in love with each other (the current Official Couple on this front is Ruby (who is a hare) and Granite (who is a lion), and before that, Ruby liked Tour (who is a cat), and then there are Jewelpets and humans (Jewelpet Sunshine's main plot is a Love Triangle between two humans and the aforementioned Ruby; also, Rald (a Jewelpet who's a panda) gets most of his Valentine's chocolate from human girls and no one blinks at this).
  • Kagerou Project:
    • A rather tragic example between Azami (Medusa) and Tsukihiko (human). Both were shunned and attacked by the humans for being monsters (Azami for her various magic powers, Tsukihiko for having white hair and pale skin) and lived together in a forest outside town. When Tsukihiko eventually grew into a man, Azami realised she'd fallen in love, and they started a family. The tragic part enters when Azami realises her husband and daughter are aging, she's not, and she will be alone again. Even after creating a never-ending world, she goes in alone when an attack from humans makes her realise she violated the natural order, and that Shion would be better growing up as a human.
    • Azami's Half-Human Hybrid daughter, Shion, had one - resulting in Marry. The details are glossed over, but implication is that he died of old age before we're shown Shion and Marry together (by which point Marry is 40 in human years).
    • It is also heavily implied that Marry and Seto have mutual feelings for each other, but it's never stated outright.
  • Kamisama Kiss has several, the main one being between the two protagonists, Tomoe and Nanami. Tomoe is a Little Bit Beastly kitsune while Nanami is a teenage human girl turned Land God.
  • Arguably, this is the entire premise of Kanokon (beside extreme fanservice, with pinches of shotacon.)
  • Kir from King of Bandit Jing hits on everything with two X chromosomes to rub together, and though he always gets rebuffed, it seems to have more to do with his personality than the fact that he is a bird.
  • In the second half of Kishin Douji Zenki, Chiaki's Ordinary Highschool Student friend Sayaka meets an odd young man named Inugami... who turns out to be the son of En-Gai, a prince of the Land of Death; he was originally a human child adopted by said Lord, and then turned into a monster and the local genderflipped Apocalypse Maiden. At first Inugami is very cold to Sayaka, but as time passes and he begins to defrost VERY slowly, he begins to wonder "What Is This Thing You Call "Love"?" And then they become sort-of Star-Crossed Lovers as, you know, she's a human and a friend of the demon-slaying lead girl, while he's a demon lord...
  • The premise of the series Kitsune no Yomeiri is basically that of a modern romcom version of the traditional kitsune/human relationship from Japanese folklore.
  • Kyo Kara Maoh! has Demon/Human relations. Although, for most of the series it is heavily frowned upon, to the point where Half-Demon Half-Human families have to live in their own villages.
    • Half demon half human offspring may or may not have magical abilities, as see by Conrart and Yozak (who have none), and El (who is ungodly powerful as a baby).
    • There is also something involving a guy (presumably a demon) and a panda which, even by the standards of this series is just utterly insane.
  • This happens quite a lot in Macross, as humans, Zentraedi, and the other "Children of the Protoculture" begin to intermarry and reproduce following the conclusion of Space War I:
    • The romance between human Ace Pilot Max Jenius and his Zentraedi counterpart Milia Fallyna is an important plot thread in Super Dimension Fortress Macross, as it marks a major development in terms of human-Zentraedi relationships.
    • Zentraedi-human crossbreeds are particularly common in later stories, though whether the Zentraedi should truly be considered a separate species is debatable given that they and humanity have common origins.
    • In Macross Dynamite 7 there's an in-universe radio drama revolving around first contact between the Macross 11 fleet and the marsupial Zolan species, which involves a human-Zolan romance.
    • Macross Delta's love triangle involves the human Hayate, quarter-Zentraedi Mirage, and full-blooded Windermerean Freyja.
  • Hayate and Vita of Magical Girl Lyrical Nanoha. A human and her beloved Ridiculously Human Guardian Knight Program.
    • And for a more official example, we have Genya and Quint Nakajima, an Earthling (well, a descendant of Earthlings) and Mid-childan. Though since Quint was barren after sustaining near fatal injuries during a mission, she couldn't bear children. They found other ways to solve that problem.
    • Same thing applies for Nanoha and Fate.
  • Maken-ki!: The flashback mini-arc between chapters 51-53 reveals that Himegami's mother was Yatsuno, the Eight Headed Orochi in human form. She was such a hottie that Oousu couldn't keep his eyes off her body and was determined to bang her. He eventually succeeded and fathered their two children: Himegami and her older brother, Yabiko. Meaning, she's biologically half-dragon.
  • The Mazinger trilogy (Mazinger Z, Great Mazinger and UFO Robo Grendizer) has several examples from romances between humans and humanoid aliens: Duke and Hikaru, and Kouji and Maria Grace. And the you have Duke and Rubina. Both of them are aliens but they are from different species -and born in different planets-.
  • The manga Mermaid Boys has a premise that is essentially a gender-flip of The Little Mermaid - a mermaid prince falls in love with a human schoolgirl, a new spin on a classic version of this trope.
  • Hippo and Yuuri in Mermaid Melody Pichi Pichi Pitch covers all the bases. Hippocampus that turns into a penguin that turns into a human falls in love with a tropical fish that also turns into a human. Whew!
    • Lucia Nanami, a pink Mermaid princess falls in love with Kaito Domoto, a Panthalassian.
  • In Miss Kobayashi's Dragon Maid there are several cases of dragons shown having romantic feelings for a human (plus Lucoa attempting to seduce Shouta for room and board), including the title character and "her" dragon maid Tohru, but only Kanna's feelings for Saikawa are shown to be mutual.
  • The h-mangaka, Mizone, specializes in these type of stories, as they created numerous douijins of pokémon masters hooking up with their Pokémon. The mangaka has also authored numerous anthologies where human men end up with a Cute Monster Girl wife, girlfirend, or even harem.
  • Monster Musume is about a human guy who rooms with lots of monster girls. Romantic hijinks ensue. Incidentally it is one of the highest-selling manga in the United States.
  • My Bride is a Mermaid gets a little interesting with this. Within the series' Love Dodecahedron is a human, a mermaid, another mermaid, another human, a whale, and in the anime, a catfish.
  • My Monster Secret: All over the place, be it the parents (Youko and Shiho are half-vampire and half-wolfman, and Akari has a demon ancestor) or Youko and Aizawa with Asahi.
  • Nadia: The Secret of Blue Water ends with Jean (a human) being happily married to Nadia, who might be human-looking but is the last surviving member of the Atlantian race, who were an ancient alien civilization. Making it a twofer: interspecies romance and an interracial marriage, since Jean is white and Nadia is Ambiguously Brown.
  • In Nagasarete Airantou, there is only one male on the whole island, so most of the young girls are in his Unwanted Harem, except for two. One of them is Mikoto, who crushes badly on other girls, especially Rin, and Mikoto's sister Kunai, who is attracted to...a penguin.
  • Negima! Magister Negi Magi, the girls of the Unwanted Harem who have an actual interest in Negi include a vampire, her Robot Girl servant, a ghost, and perhaps a half-Tengu. Perhaps in the half-Tengu's case because she seems more interested in her (human) classmate/childhood friend. Also, Natsumi seemed to really like Kotaro's half-wolf form.
    • And then there's the recently revealed Magical Land, which seems to be mostly populated with Humans, some Funny Animals, even the odd demon. All of this little world is implied to happily mingle and reproduce without much regard for species.
  • The manga Nekoyome (literally "Cat-Wife") is about the married life of a human male and a female nekomata (who is a cat-sized bipedal anthromorphic talking cat!)
  • Neon Genesis Evangelion: There's Rei Ayanami and Shinji, which doesn't seem too unusual until she is revealed to be a Soul Jar for an Eldritch Abomination.
  • In Nerima Daikon Brothers, Ichiro and Yukika are both a little too into the panda, Pandaikon. And pretty much everyone wants Ichiro, and I mean EVERYONE, human and animal alike.
  • Niehime to Kemono no Ou (Sacrificial Princess & the King of Beasts) is all about this trope:
    • The human girl Sariphi has been raised since birth to be the eponymous King of Beasts, Leonhart's Human Sacrifice, like 99 girls before her, and she's clearly aware of it. When she meets him, however, she finds out that not only he's secretly spared all of the maidens, but is a deeply sad person under his monstrous facade. The King is impressed by Sariphi's quiet lack of fear, so rather than sacrificing her or letting her go, he makes her his Hot Consort instead.
    • It turns out that Leonhart himself is a Half-Human Hybrid and product of one of these, meaning that in certain nights he loses his monstrous features and temporarily becomes a handsome young man. Sariphi finds out about it, but she keeps the secret to herself.
  • O-Parts Hunter:
    • Jio, who is both Satan's host and was created from Adam and Eve, two aliens, and Ruby, an angel.
    • In the FAR late part of the story, Ball ends up with a cyclops woman. They even have children! In fact, their mentor is a result of such a pairing, as is his brother.
  • Onegai My Melody: The cast is split between humans and living stuffed animals, so there are plenty of these besides even the ones below. It should be said ahead of time that all interspecies pairings on this show are one-sided.
    • Kuromi (plush rabbit/devil) is Yandere for Hiiragi and just wants to make him love her. She fantasizes about marrying him and once even dreamed of having his child. It upsets her that he doesn't return her feelings though he does sometimes exploit them.
      Kuromi: Would it be so freakin' wrong for a human to fall in love with a stuffed animal?!
    • Shiroyama was charmed by My Melody (also a rabbit) and her "Onegai/Please?" and since then she's on his mind all the time. His room gradually becomes a Stalker Shrine to her. His infatuation gets him in a lot of trouble over the course of the series, since Kuromi uses hopeless dreamers like him to further her goals.
    • The king of Mari Land (elephant) crushes on humans too, particularly the weather girl on TV, and keeps an implied human Porn Stash. Both of these things piss off his wife greatly.
  • In One Stormy Night, Mei the goat and Gabu the wolf are "friends", with a relationship dynamic much more like male lovers, albeit subvertedly Star-Crossed Lovers, even opting, after the hardline disapproval of both their kin, to escape together to a distant place to be with one another forever. Gabu's carnal predatory instincts only add to this, seeming more like intense homoerotic attraction. In a later scene in the film, Mei agrees to be eaten if the one who eats him is Gabu, which gives Gabu an emotional breakdown, and they do not follow through. See also If It's You, It's Okay. More strongly implied in the CGI-series.
  • One Piece has human and mermaid couples, merman and fish people couples, and even a fishman and giant hybrid.
  • Orc Eroica:
    • This is Bash's goal in a nutshell, since female orcs don't exist and he must find a wife from another race.
    • It's also actively encouraged by the elves, to replenish their population after the war. Most of these pairings are female elves with males of other races, because lots of male elves were killed by the succubi during the war.
  • Oruchuban Ebichu has Ebichu and Makun/Maa-kun.
  • Otome Youkai Zakuro deals with the relationships between a trio of human males and half-kitsune females in an interspecies military unit in Meiji-era Japan.
  • Outlaw Star: Gene (human) eventually hooks up with Melfina, a highly advanced bio-android, who was created by Professor Gwen Khan.
  • PaRappa the Rapper:
    • As in the original video game, PaRappa is a dog in love with a flower named Sunny Funny.
    • The fifth episode has the gang go back in time and meet a goblin named Ee-Rey who is in love with a princess named Niisa, who happens to be a flower-person like Sunny, except her petals are colored blue instead of pink.
    • The seventh episode has Chief Puddle, a dalmatian, pursue a relationship with Anne Marie Tambourine, a rabbit.
  • Petshop Of Horrors: If you've had sex, it was with an animal demon in temporary human form.
  • Phantom Quest Corp.: The first Incident File ("Kiss of Fire") introduces Bosco, an anemic vampire who's trying to kick the habit in order to be with a 19 year old college freshman, named Makiko. She reciprocates and they become an Official Couple by the end of the episode.
  • Pokémon: The Series:
    • It has a LOT of examples. Actually most romance involving a Pokémon is, except when it's between a gender counterpart race such as Nidorina/Nidorino and Volbeat/Illumise or in some cases, two Pokémon of the same species. Several Pokémon, such as Meowth, Ash's Chikorita and Aipom and Harley's Cacturne have shown interest towards a human, but a human having interest for a Pokémon has yet to come.
    • In "Lights, Camera, Quacktion", a movie called "Pokemon in Love" is filmed where a Wigglytuff and Misty's Psyduck are cast as Star-Crossed Lovers. When Psyduck later rescues all the Pokemon from Team Rocket, Wigglytuff falls in love with him for real and snuggles up to him in the ending.
    • Most famous is between Ash and Latias, a Legendary Pokémon to boot, from Pokémon Heroes.
    • Ash's Bayleef takes it to a new level. She is very much in love with her trainer.
    • Dawn's Buneary had a crush on Ash's Pikachu for a long time.
    • A Phione became attracted to Buneary, and angrily tried to fight Pikachu over her. Humorously, Phione are genderless and don't reproduce that way.
    • In one episode, Jesse's Wobbuffett fell madly in love with a wild Kirlia, so much that it was willing to disobey Jesse in order to protect it. It wasn't exactly clear how the Kirlia felt about it. (This makes a little sense, seeing as Wobbuffett and Kirlia are both Psychic Pokemon, and thus at least have something in common.)
    • Special mention goes to Ash's Oshawott, who falls for practically every (assumed) female Pokémon he meets.
    • In an episode of Pokémon the Series: XY (XY013/"Kindergarten Chaos!''), Ash's Froakie loses to Trainer of the Day Penelope's Sylveon, who uses Attract and Draining Kiss to put him out of commission. Not so strange, right? Later, when Froakie, Ash, and a boy named Randall (one of Penelope's day care students) band together to save her from Team Rocket, Sylveon affectionately nuzzles him with her feelers to show her thanks. Froakie is startled and breaks away, but is shown to be blushing. Additionally, Meowth is infatuated with Sylveon, but nothing else happens on that front.
    • That wasn't even the first time Meowth's fallen for a Pokémon of a different species. In "I Feel Skitty" (AG047), he becomes infatuated with May's Skitty (understandable considering both Mons are felines). His entire motivation for trying to get Skitty to run away from Jessie is to prevent her from suffering Team Rocket's "blasting off again" routine.
      • Meowth seems to have a thing for Skitty, since he tried to get together with another one in one of the "Pikachu & Pichu" shorts.
    • In all fairness, at least in the cases of Pokémon who have crushes on Pokémon who are not their species, two Pokemon do not have to be the exact same species to be biologically compatible with each other if the video game is any indication. (In the game, you can breed a male with a female if they share an "Egg Group", and several different species belong to each Egg Group.) Though there have been instances of the subject Pokémon not being in matching egg groups.
    • Tropius/Meganium, Golduck/Azumarill, Bulbasaur/Gloom etc. There are also some Human/Pokémon examples (Ash/Bayleef, Ash/Aipom, Harley's Cacturne/Jessie). Most of the love is one sided and on the human/Pokémon it's always on the Pokémon's side, except for Gardenia and her fetish.
    • One episode of the Sinnoh saga involved a scientist trying to invoke this between his Quagsire and Magmemite, by inventing a machine that would make Electric types and Water types fall in love, no matter what. This caused some difficulty for Ash and Dawn when Pikachu and Piplup were in the radius of it, as they gained a nearly unbreakable grip on each other, that they would just reinitiate if pulled apart.
    • In the Sun and Moon saga, Meowth suffers a Near-Death Experience and hallucinates meeting a Glaceon, Gardevoir, and Lopunny. He becomes attracted to them before waking up. Later, he becomes attracted to the rather alien-looking Pheromosa, but she didn't care about him and abandoned him even when he helped her, prompting Bewear to beat her up for breaking Meowth's heart.
    • There was a Dewpider who fell in love with Lana.
    • As of episode 72 of Journeys, Meowth has developed a crush on Chloe, and was even going to leave Team Rocket so she could be his trainer, but ends up confessing to Jessie and James by accident, with Chloe none the wiser.
  • Pokémon Adventures rather infamously implies one in one chapter in the first arc when Red picks up a newspaper and reads an article about a girl having a surprising ordeal with her Tentacool in the bath. The girl makes cameos in later arcs always seen bathing with her Tentacool.
  • Princess Tutu:
    • Given that Ahiru is a duck given human form, any relationship with her invariably involves some element of this, especially given the ending — Looks like Fakir isn't going to let the fact that they can't consummate get in the way of being together.
    • Neko-Sensei seems to be interested in human characters, both female teachers and his young students. He threatens to marry his students if they don't do well in his class. It's mostly Played for Laughs, though.
    • In addition to that, a female sloth and goat are both in love with him and they would love to marry him.
  • Persia, the Magic Fairy: The Fairy Queen that gave Persia her powers fell for Kenji, a human, but lamented that they couldn't be because she was a fairy and had a duty to her world. When Persia enocunters Kenji, he has a fleeting crush on her because she looks like the very Queen he fell in love with years ago.
  • Queen's Blade: Irma (human) used to have such a relationship with her former mentor, Echidna, an elf who was already more than 500 years old at the time they were sleeping together. That ended the day Echidna walked out on her. Now, Irma wants nothing to do with her.
  • Raideen has this between Princess Lemuria and Ichiro Hibiki. They had a son, Akira, but he grew up without his mother since Lemuria had to return to the cosmos and find the La Mu star to prevent the Demon Empire from destroying Earth like it did to her old home. Ichiro was actually Locked Out of the Loop and had no idea his suspiciously green-haired wife was an alien, being shocked when the Demon Empire's Alien Prince told him of the fact.
  • Re:Zero:
    • The human Subaru falls in love with the half-elf Emilia. In the middle of the second season, they have their First Kiss.
    • The Oni Rem falls in love with Subaru. While he never stops loving Emilia, Subaru grows strong feelings for Rem too.
  • One of the things the three series that made up Robotech had in common, aside from the Transforming Mecha, was a Green Haired Space Babe who falls in love with one of the human pilots.
    • Inverted in the "Robotech Masters Saga", where it's a human (well, half-human, half-micronized Zentradi) woman who falls in love with an alien male.
  • Rosario + Vampire has one semi-official coupling between (former) human Tsukune Aono and vampire Moka Akashiya. Meanwhile, several other Cute Monster Girls have their sights set on Tsukune.
  • Sailor Moon:
    • The SuperS season of the 90s anime had Chibiusa fall in love with a winged unicorn named Pegasus. Partially subverted in that he was really after her mind, not body, as the theme of that story arc was basically pure dreams, which Chibiusa would have as a child.
    • In the SuperS anime, the cat Artemis seems to mix the trope with Hot for Preacher: his "target" is a beautiful Catholic nun named Sister Maria. Luna herself teases him a lot for it, and thinks it's kinda cute. That's regarded moot soon, though, since it turns out that Artemis was just daydreaming about how he wanted cats to get married in a church.
    • In the SuperS movie, there's Chibiusa and the fairy Perle. At the end of the movie, she kisses him on the cheek.
    • The manga had one of these in the side story The Lover of Princess Kaguya (basis for the Sailor Moon S movie), where the cat Luna falls in love with a human astronaut named Kakeru, but he is in love with his co-worker Himeko.
    • One chapter of Code Name Sailor V had the cat Artemis crushing on a small dog who happened to be named Luna-chan. While he probably mistook her for that Luna at first (the dog actually looks a lot like a cat, only giving herself away by barking), he still considers "marrying" her after the reveal until the dog turns out to be a disguised villain. A male villain.
  • Sekirei is built on this trope, with the titular aliens falling in love with human partners. It's later revealed an Ashikabi is a Half-Human Hybrid, and their ancestors were Sekirei that married humans in ancient times.
  • The three main couples of The Seven Deadly Sins:
    • The demon Meliodas and the human princess Elizabeth. It gets an extra layer with the revelation of Elizabeth's origin: Elizabeth was originally a goddess and Meliodas' lover 3,000 years ago. However, because demons and goddesses are sworn enemies, Elizabeth was cursed to eternally reincarnate as a human to force Meliodas to watch her tragic death over and over again. At the end of the series, Meliodas can finally marry Elizabeth after he breaks the curse.
    • Ban, a human and Elaine, a fairy. They met when Ban came looking for the Fountain of Youth, which Elaine was guarding. Ban decided against drinking it after finding out doing so would destroy the Fairy Forest, but after the forest was attacked by a Red Demon and both Ban and Elaine are fatally wounded, Elaine gives him water from the fountain (via a kiss) and after killing the demon and watching Elaine die, he tries very hard to resurrect her. Later on, she is brought back to life.
    • The giantess Diane and the Fairy King Harlequin aka King. Early in the series, King is in love with Diane, but she doesn't notice his feelings because she has an unrequited crush on Meliodas. After Diane gives up on Meliodas and recovers her lost childhood memories of King, she falls back in love with King. Their marriage unites the fairy and giant races.
  • Sgt. Frog, aka Sgt Frog has many interspecies interest though it is one sided or unrealized love. The most prominent crush in the series is "Giroro" the reddish alien frog (called Keronians) to the human (referred as pekoponians) "Natsumi". the keronian, hard-boiled, combat specialist Corporal Giroro who wants to invade Pekopon (Earth) is deeply in love with the tomboyish Pekoponian school girl Natsumi (everyone knows this, except Natsumi....) who is considered an obstacle for the invasion. “She's the girl of their nightmares…& the girl of his (Giroro's) dreams.” There is also Angol Moa/Mois, a ditzy humanoid alien girl from the Angol tribe who has a deep crush on Keroro (an alien keronian from the 58th Planet of the Gamma Nebula). “I've kissed enough princes to deserve my frog…” Sergeant Major Kululu has this thing of watching Aki (the hot mom of Natsumi & Fuyuki) shower & seems to have a creepy thing for her, though she does not seem to mind him & thinks he is a cool addition.
  • Both examples are more in the Ship Tease category than actual romances, but the two biggest cases in the Slayers series are Princess Amelia and Zelgadis (a regular human and a chimera) and Xellos and Filia (a demonic priest and a golden dragon). Zelgadis and Amelia's case is subverted in that the former was once a human himself.
    • In the fifth season of the anime, there is the mechanical doll Ozel having feelings for the human priest Rezo, which in this case is unrequited.
    • And in the fifth Light Novel, the silver tiger beast/cult member Duclis spoke to the human protagonist Lina during his death that he had grown fond of her.
  • Chihiro and Haku, the Official Couple of Spirited Away. Chihiro is a human and Haku is a river spirit that can take the form of a dragon.
  • Superior:
    • Exa and Sheila fall in love early on, though both of them deny it until near the end of Superior Cross. This is something of a problem, considering that Sheila is the demon lord that Exa has sworn to kill.
    • Angelica's paternal grandparents are another example, with her grandfather being a bear demon who could take the form of a Bishōnen with animal ears. Sadly, they ended up being Star-Crossed Lovers when he abandoned her to spare their unborn child from being subjected to Half-Breed Discrimination due to a deal he made with the townspeople (though the end of his introductory chapter makes it clear that they will be Together in Death when he dies).
  • Tales of Wedding Rings has Satou, an Ordinary High-School Student from Japan, get married to the princesses of five separate kingdoms of a fantasy world. There's his childhood friend Hime/Krystal, a human; the elven princess Nefritis; the catfolk princess Granart; the dragonfolk princess Saphir; and Amber, a Magitek android built in the likeness of the last princess of the extinct dwarves. There is also Satou's friend Marse, a human prince, who is in love with Saphir's twin sister Saphira.
  • Tamamo-chan’s a Fox!: Regardless of their being immortal bipedal kitsune, any boys that see past their illusions have no issue declaring how attractive the three sisters are. Especially Tenko when she shows up to be a teacher in Tamamo's school. A boy even tells her up-front that he is in love with her and asks for a relationship with her. Tenko is flattered by that declaration but turns it down due to them being a teacher and a student... for now.
  • In Tamako Market, Talking Bird Dela develops a crush on Shiori.
  • Tenchi Muyo!: It's mostly Human Aliens, and then there's the question of how you count Tenchi (he's part alien himself), but it's a central theme of the Unwanted Harem the poor kid has. Even the battleships have the hots for him. Well, two of the most powerful battleships in the galaxy, anyway. One manga shows a Terran girl making her case by being the only HUMAN interested in Tenchi.
  • Time of Eve:
    • Subverted with the couple Koji and Rina; each believes the other to be human, but they are both revealed to be androids.
    • Later played straight with Sammy, who is heavily implied to be in love with her human master Rikuo.
  • In Tokyo Ghoul, it's hinted this happens on occasion. The Anti-Ghoul laws include provisions for dealing with any human knowingly harboring a Ghoul, suggesting there are incidents of romance between the two species. Itori mentions old urban legends about Half-Human Hybrids, but dismisses them as impossible.
    • Ghoul Nishiki and his Human girlfriend, Kimi. After a Non Human Lover Reveal, she decides to accept him anyway and this leads him to join Anteiku so he can avoid having to hunt humans for food.
    • Yoshimura once had a human lover, which turns out to have long-reaching consequences. Their child is the only known case of a Half-Human Hybrid and the most powerful Ghoul on record, the legendary One-Eyed Owl.
  • Tokyo Mew Mew:
  • To Love Ru has a romance between a human (Rito) and at least two alien girls, Lala and Run.
  • The Vision of Escaflowne has Merle, a Cat Girl Unlucky Childhood Friend with a crush on Van, a human. Actually a Winged Humanoid who hides his wings because they mark him as the In-Universe equivalent of Satan. As a result, his eventual hooking up with the truly human Hitomi is also an example of this.
  • Urusei Yatsura primarily follows the human Ataru Moroboshi's relationship with the alien Oni Lum, who falls madly in love with him and is determined to marry him no matter what.
  • Warcraft: The Sunwell Trilogy has two of them. One is between Kalecgos, a blue dragon shapeshifted into human form, and Anveena, who looks like a human girl but is unknowingly a Pure Magic Being, the eponymous Sunwell in human form. The Beta Couple consists of Jorad Mace, a human paladin, and Tyrigosa, another blue dragon.
  • In Wicked City the human Renzaburou and the demon Maki eventually develop feelings for each other and consummate their love near the end of the movie. It's a huge plot point: the person they were ostensibly protecting was actually steering them towards this outcome all along because their Half-Human Hybrid child — the very first one in existence — is needed for the peace treaty as living proof that humans and demons can co-exist peacefully.
  • In Wolf Children, this is a main plot point. The human Hana falls in love with a unnamed wolf-man, and the two have two children, Yuki and Ame, who both posses the ability to transform into wolves. This is then deconstructed slighty when the wolf-man dies whilst out hunting. The difficulty of having to raise two wolf-children alone on very little money, whilst having to keep their secret, and combined with being an first-time mother (and so unable to properly ask anyone else for help) ends up causing Hana and the children to move to the countryside in order to preserve their anonymity.
  • Wolf Guy - Wolfen Crest gives us Akira Inugami's parents. Tetsuya Inugami was a human man, his wife and former student Lois was a werewolf.
    • And later Akira is wanted by at least three humans - the sweet and very unlucky teacher Akiko Aoshika, the very Cute and Psycho Ryuuko Kounuma, and Ryuuko's 'even crazier boyfriend, Haguro Dou.
  • The Official Couple in Wolf's Rain is Kiba (a wolf) and Cheza (an Artificial Human made from flowers), much to his pack's envy. It ends tragically.
  • In The World God Only Knows, among the human gamer Keima's many admirers, there's Haqua, a demon, and Diana, a goddess residing inside the body of Keima's shy neighbor. However, Keima doesn't even acknowledge their feelings because he only wants to play Dating Sims and he ultimately chooses an ordinary human girl as his love interest.
  • Yes! Pretty Cure 5 decided to pair off the (human) Cures with their fairy mascots (who can conveniently turn into humans), leading to such pairings as:
    • Nozomi (human) and Kouji/Coco (funny plush-looking tanuki-thing from another dimension), as well as Komachi (human) and Natsu/Nuts (funny plush-looking squirrel-thing from the same other dimension). To make things worse, Nozomi is a middle schooler and Coco's human form is a middle school teacher.
    • There's also all the subtext between Karen (human) and Milk (funny plush-looking rabbit-thing from that same other dimension). They are both female. Worth noting is that, unlike the other pairings, most of their Ship Tease occurs when Milk is in fairy form instead of in human form.
    • The second season introduces Syrup (funny plush-looking penguin-thing from same dimension), who gets teased a lot with Urara (human). Which leaves Rin as the only Cure not paired up with a mascot... and one episode centered around her and a ghost (not exactly different species, but close enough).
  • In Yo-kai Watch Komajiro has a human girlfriend. She doesn't know that he is really a dog-looking youkai. His older brother Komasan fell for a human however subverts this trope. Nothing became of it even when he revealed his true form and in fact she thought he was scary enough to write a horror manga about.
  • Yu-Gi-Oh! GX has Juudai/Yubel. Juudai swore his love to them after they were transformed from a human into a humanoid dragon, and that didn't change even after death and Reincarnation. He just forgot about it for a while. He got better, and so did Yubel. There's also Taniya/Misawa, even though Taniya is fairly human-looking. She can just turn into a tiger and has very pointed ears. (It has been suggested that the tiger is indeed her true form, but this has not been confirmed.) Other examples including Sho/Dark Magician Girl (which is canon, even if they're not specifically together, as interest was shown on both sides) and Fujiwara/Honest.
  • YuYu Hakusho and its human/demon romances, namely Sensui and Itsuki (human and demon/yaminade), Yusuke's ancestor Raizen and a female doctor (demon and human), and also Kuwabara and Yukina in the manga. Hell, you could count Yusuke and Keiko, as well, because of his demonic atavism.
  • Zatch Bell! features Wonrei and Lien, the only human-mamodo team in the series whose relationship very explicitly goes beyond friendship. Fortunately, since Wonrei is one of the few mamodo who actually looks like an adult human (and one of the most human-looking mamodo of the entire series), the trope's usual creepiness is wisely averted.

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