Elder Brother, Younger Sister

Suzaki Maho hates her brother, Suzaki Miki, for chasing away her boyfriends. Maho believes that because he is a model, he feels that he is prettier than she is. The pair has no parents thus they only have each other. Maho discovers that Miki dresses up as a woman and steals her boyfriends away. He later confesses his love to his Maho. When Maho can no longer take the pressure, she ends up sending him to Hell.