 Kōhei also meets a blind upperclassman named Misaki Kawana who has a sociable personality where she can be unreserved with anyone . A mute underclassman girl named Mio Kouzuki meets Kōhei one day and uses a sketchbook to carry on written conversations . She belongs to the drama club , and despite not being able to speak , can still show emotion through various abundant expressions . The last girl Kōhei gets to know is a childish junior high school student named Mayu Shiina who refuses to go to school . Her one and only friend she could trust in life , a ferret named Myū , dies shortly before she meets Kōhei and the other main characters . 
