Complete list of yaoi manga. Yaoi, also known as Boys' Love or BL in Japan, is a genre mostly written by women, for women, that depicts homosexual relationships between men. Japan typically uses this single category for all forms of these relationships, sexual or not. In the West, the term Shounen-ai categorizes stories that focus on emotional aspects of relationships, while Yaoi categorizes Tag: Incest. Incestral History “Hey there Timmy, come and see your incestral history. We have always wed our kin. We bred out, but mostly in. Timmy, don’t you run away! Hear what Daddy has to say: You don’t have to be so sad. (And technically I’m your grandad.) Your sister can be your mom too.