>>3813867Yami no Matsuei anime came out in the 00s. In the manga Tsuzuki falls in love with a woman, flirts with women and only compliments girls as beautiful or cute. Dr Muraki has a childhood friend fiancee who he namedrops when he thinks he's about to die, and who he tries to keep shielded from his true nature as a black magic practitioner who enjoys killing women (he also claims to be a vampire but Matsushita dropped further mentions of that). He says himself that Hisoka is an exception because he was just that pitiful and perfect for his corruption fetish. Same Hisoka who shares his name with a sister and gets dressed up in frilly lolita dresses. What motivates Muraki to chop Tsuzuki's head off (which he nearly does in the manga, I don't think the knife went all the way through the bone, just the windpipe) isn't standard yandere attraction, partly because the writing fucks about too much making excuses to be consistent, but mostly because it's there to make a hot villain rather than an outright gay one. It's for the audience of little girls to swoon over and get excited by.
If you were talking manga you could put the characters from the Catholic school arc, but those fuckers be extra dead after the fucking and getting tongue from Focalor. I think the only gay pair in the running with some confirmation of their feelings is Chizuru and Rika, but the author still doesn't let them stay together so only Chizuru has recurring character potential. She dodges fully canonising them too by making Rika oblivious and Chizuru refuse to confess openly, they're just stuck in limbo where everyone else calls them lesbians and they never discuss it. Such is 90s shoujo manga.