Hen(1988)

Hen

Suzuki Ichirou, a straight young man who becomes besotted with another guy, Satou Yuuki, convinced his bishounen love is a girl trapped in a boy's body. Interestingly, author Oku Hiroya is one of the characters in the story, the best friend of Satou. The first three volumes of this series collect Oku's early short stories, including prototype versions of both Hen series.