Bakemuko

The women in her family are under a generational curse. Thus, Akade Soutaro was raised as a man and given a masculine name. One day, she is brought to a slug god who wishes to make her her husband. When Soutarou responds that she's female, the god simply states that she can freely change between sexes. In a mansion with endless rain, the two exchange marital vows. The story of their marriage life as Soutarou struggles with her gender identity and curse.