Thread:KuroiHanaSensei/@comment-34228420-20180106002800/@comment-31740757-20180106175943

Rantarou probably is asexual and aromantic/biromantic. He once told Shuichi something like he's not interested in sexual stuff, that clearly shows his asexuality. Also, in his Love Hotel/Love Suite (idk what it's called anymore, sorry) scene, he was shown being a "big bro" of Shuichi, so it might mean he doesn't want any romantic relationship with anyone, which can mean he is aromantic. But more fans seem to find him biromantic, and they probably have their arguments for it.

Also, when it comes to being transgender, Korekiyo is kinda transgender, reminding his sister case and that he is trying to be like her (?). Tho there isn't no Korekiyo page on this Shipping Wiki yet.