Mitsuki Fujioka just entered Iwatobi high and reunited with her Senpai from middle school, Nagisa Hazuki. The strange girl is almost as weird as Nagisa. She ignores everyone who isn't Nagisa, and clings to him 24/7. She has no interest or enthusiasm in anything he isn't involved in. Her life basically revolves around the boy. He seems to air headed too notice her affections, and she seems to be unconcerned with that. Until Nagisa seems to go through a bout of Melancholy...