MoonPhase (2004)

Staz is a vampire from the surreal "Demon World", and Fuyumi, an ordinary girl, accidentally wanders into the Demon World through a portal. Subsequently after meeting each other, Fuyumi is killed by a carnivorous plant and turned into a ghost, causing Staz to take responsibility and pledge to help bring her back to life.

Kimihiro Watanuki is a high school student plagued by ayakashi spirits, both of which are invisible to everyone else but him. The series begins when Watanuki stumbles, seemingly by chance, into a shop that grants wishes. The shop is owned by Yūko Ichihara, a mysterious witch of many names and esoteric renown. For a price, she offers to grant Watanuki's wish to be rid of the spirits. The price, according to Yūko, must be of equal value; so, as payment, he must become Yūko's temporary, part-time cook and housekeeper.

Legendary half-vampire, half-human vampire hunter Blade is tracking Deacon Frost, a very powerful and influential vampire who killed his mother and who heads Existence, a secretive vampire organization that operates in Southeast Asia.

Ranma Saotome, a teenage martial artist, and his father Genma travel to the 'cursed training ground' of Jusenkyo in China. There, despite the warnings of the Chinese guard, they fall into the cursed springs. From now on, whenever Ranma is doused in cold water, he turns into a girl and a cute, well-built redhead at that. Hot water changes him back into a man again, but only until the next time. To make matters worse, his father engages him to Akane Tendo, a girl who hates boys.

It can be hard moving to a new school, and fifteen-year-old Kyosuke has it harder than most. He’s fallen head over heels for his classmate Madoka, a girl who won’t even give him the time of day, and unintentionally ended up dating her best friend, Hikaru, instead. Worst of all, Kyosuke and his family have amazing supernatural powers, but he has to keep them hidden from the rest of the world! How is Kyosuke ever going to balance the affections (or lack thereof) of two girls, schoolwork, and his secret abilities all at the same time?

One day, high-school boy Yamada bumps into the beautiful girl Shiraishi on the stairs (literally), and their lips touch as they fall. When they regain their wits, they realize that they have swapped bodies. As time progresses, the two realize that this is not the only mysterious happening in the school.

Akane Tendo meets her new fiancé, Ranma Saotome, a martial arts prodigy with a twist: he magically transforms into a girl upon touching cold water.

Sousuke Aikawa is a part-time worker who lives in a rundown apartment building where his only consolation is that the landlord is a beautiful woman and the girl who lives above him is cute. One day though, the ceiling above him creaks and... Bang! In from the second floor, directly above him, the cute girl comes crashing down on him…!? In an erotic encounter that can only be classified as a miracle, hearts and bodies are connected by chance. Then for some reason, he starts to live with both of these beautiful women!? Under this one roof, just what exactly will become of this crowded love triangle...!?

High school student Saito Hojo is set to inherit his grandfather’s major corporation. First, he must marry Akane Sakuramori, the girl he despises the most, and who hates him just as much. The two are determined to keep their unexpected marriage a secret from their classmates. But as they begin their newlywed life, the distance between them starts to close.

Lucy is a 17-year-old girl, who wants to be a full-fledged mage. One day when visiting Harujion Town, she meets Natsu, a young man who gets sick easily by any type of transportation. But Natsu isn't just any ordinary kid, he's a member of one of the world's most infamous mage guilds: Fairy Tail.