History Manga / DarkCat

* AllMenArePerverts: Miss Ogawa starts undressing and forcing herself on top of Ryoi to seduce him into telling her his true identity. Ryoi becomes visibly aroused out of his mind, and it's only thanks to his brother's interrruption (also because she sprouts a phallus-shaped demon out of her mouth) that he snaps.

* IHaveBoobsYouMustObey: Miss Ogawa undoes her shirt while she hypnotizes him. No doubt it helped.

* SiblingYinYang: Hyoi, the older brother, is cool and professional, while Ryoi, the younger, is goofier and more emotional.

* ImmortalImmaturity: The brothers are implied to very old despite their entities, but Ryoi behaves much like the timid teenage boy he looks like, down to the SacredFirstKiss trope.

[[quoteright:225:https://static.tvtropes.org/pmwiki/pub/images/darkcat.jpg]]
A horror/shojo manga by Naomi Kimura. It tells the exploits of Hyoi and Ryoi Kagezaki, the titular Dark Cats, a kind of magical creature with the ability to turn into a cat. Trained as children by the evil demon cat Jukokubo, the brothers now fight him and all the demons who make prey of the darkness living in the human hearts while disguised as transfer school students.

* SiblingYinYang: Hyoi, the older brother, is cool and professional, while Ryoi, the younger, is goofier and more emotional.

A horror/shojo manga by Naomi Kimura. It tells the explots of Hyoi and Ryoi Kagezaki, the titular Dark Cats, a kind of magical creature with the ability to turn into a cat. Trained as children by the evil demon cat Jukokubo, the brothers now fight him and all the demons who make prey of the darkness living in the human hearts while disguised as transfer school students.

The manga received an OriginalVideoAnimation in 1991, which has the doubtful honor of being one of the last works by Nikkatsu Corporation before its closure.

* AllMenArePerverts: Miss Ogawa starts undressing and forcing herself on top of Ryoi to seduce him into telling her his true identity. Ryoi becomes visibly aroused out of his mind, and it's only thanks to his brother's irruption (also because she sprouts a phallus-shaped demon out of her mouth) that he snaps.

* AllMenArePerverts: Miss Ogawa starts undressing and forcing herself on top of Hyoi to seduce him into telling her his true identity. Hyoi becomes visibly aroused, and it's only thanks to his brother's irruption (also because she sprouts a phallus-shaped demon out of her mouth) that he snaps.

* AnimalEyes: Ryoi has slit pupils, just like a cat.
* {{Animorphism}}: The main trait of the Dark Cats is turning into cats (apparently regular ones, telepathy aside). Reflecting their personalities, Ryoi becomes a black cat while Hyoi turns into a calico.
* BigDamnHeroes: Ryoi bursts into Miss Ogawa's office to save Hyoi.

* ImmortalImmaturity: The brothers are implied to very old despite their entities, but Hyoi behaves much like the timid teenage boy he looks like, down to the SacredFirstKiss trope.
* HairIntakes: Ryoi's hair resemble cat ears.

* ISeeDeadPeople: An ability of the Dark Cats, which is used by Ryoi to exorcise the ghost of a girl in the prologue of the OVA.
* MindControlEyes: When interrogated by Miss Ogawa, Hyoi tries to use hypnosis on her to convince her he is just a regular student. Much to his surprise, it fails, and then it's Ogawa who starts her own hypnosis on him, revealing she is demon-possessed.

* Really700YearsOld: Although they resemble middle/high schoolers in their human form, the brothers's age is implied to be very ancient. Ryoi mentions that they have been fighting Jukokubo for centuries.

* ShapeshiftingExcludesClothing: Played with. As seen when Hyoi transforms from cat to human in the OVA, he turns first into a nude human and then clothes appear on him, implying that the trope is played straight and that their clothes are materialized through magic.
* SiblingYinYang: Ryoi, the older brother, is cool and professional, while Hyoi, the younger, is goofier and more emotional.

* AllMenArePerverts: Miss Ogawa starts undressing and forcing herself on top of Hyoi to seduce him into telling her his identity. Hyoi, becomes visibly flustered, and it's only after she sprouts a phallus-shaped demon out of her mouth that he snaps.
* AmbiguouslyHuman: It's never clear whether the brothers are humans endowed with supernatural powers or supernatural creatures who can take human forms. Judging for the last line of the OVA, it seems they ignore it themselves.

* MindControlEyes: When interrogated by Miss Ogawa, Hyoi tries to use hypnosis on her to convince her he is just a regular student. Much to his surprise, it fails, and then it's Ogawa who tries her own hypnosis on him, revealing she is demon-possessed.

* Really700YearsOld: Although they resemble middle/high schoolers in their human form, the brothers's age is unknown. Ryoi mentions, however, that they have been fighting Jukokubo for centuries.
* SadistTeacher: Demon-possessed teachers like Ogawa and Iwata enjoy tormening their students. It also includes Principal Nishimura, although in his case he ''is'' a sadist teacher without need for possession, as he is actually Jukokubo.
* ShapeshiftingExcludesClothing: Played with. As seen when Hyoi transforms from cat to human in the OVA, he turns first into a nude human and then clothes appear on him, implying that the trope is played straight and that their clothes are made appear or disappear through magic.

A horror/shojo manga by Naomi Kimura. It tells the explots of Hyoi and Ryoi Kagezaki, the titular Dark Cats, a kind of magical creature with the ability to turn into a cat. Trained as childeren by evil demon cat Jukokubo, the brothers now fight him and all the demons who make prey of the darkness living in the human hearts while disguised as transfer school students.

* AllMenArePerverts: Miss Ogawa starts undressing and forcing herself on top Hyoi to seduce him into telling her the truth about his identity. Hyoi, who had apparently resisted Ogawa's attempt to mind-control him up to that point, turns visibly flustered, and it's only after she sprouts a phallus-shaped demon out of her mouth that he snaps.
* AmbiguouslyHuman: It's never clear whether the brothers are humans endowed with supernatural powers or supernatural creatures who can take human forms. Judging for the last line of the OVA, it seems not even they know it.

* SiblingYinYang: Ryoi, the older brother, is cool and professional, while Hyoi, the younger, is goofier an more emotional.

A horror/shojo manga by Naomi Kimura. It tells the explots of Hyoi and Ryoi Kagezaki, the titular Dark Cats, a kind of magical creature with the ability to turn into a cat. Trained as childs by evil demon cat Jukokubo, the brothers now fight him and all the demons who make prey of the darkness living in the human hearts while disguised as transfer school students.

* HairEars: Ryoi's hair resemble cat ears.

* Really500YearsOld: Although they resemble middle/high schoolers in their human form, the brothers's age is unknown. Ryoi mentions, however, that they have been fighting Jukokubo for centuries.