Katagiri Amane is a supporting character. She the president of the literature club and are close friends with Nanako and Eiji.
Katagiri Amane is a hard working, diligent girl and quite the hopeless-romantic. She cares for her members and even helps them when they have a problem.
She is also a stalker of sorts, being curious about the relationships of other peoples to the point of stalking them.