Crossplay Love: Otaku x Punk is a Romantic Comedy about two crossdressing boys who are each attracted to the other's feminine persona, but are unaware they're not a real girl.There's also the Long-Haired Pretty Boy Satoshi who has feelings for Marika no matter her gender.
Marika has feelings for both of the others main characters, Ryousuke eventually falls for Marika, and Parou likes both. Bokura no Hentai is a Otokonoko Genre deconstruction where the main characters are a straight trans girl, a straight crossdresser, and a gay crossdresser.Boku no Futatsu no Tsubasa is a Romantic Comedy with an intersex protagonist.Both protagonists are male and involved in a form of relationship with each other. Birdmen, a shounen series where the next generation/evolution of humans becomes bi/pansexual due to there no longer being any care for gender or race.
