High school girl Moeko lives for the girls' manga magazine Marin. Her childhood friend Renma once borrowed Marin from Moeko and became obsessed with girls' manga, and is now the number one popular young writer with a serialized manga in Marin. Though the two are always fighting, Moeko takes pride in supporting Koi as the number one fan of his manga. She had always believed she only loved “Koi's manga,” but she unexpectedly realizes she has developed feelings for Koi him..