Chisaki wants to know more about Yuuna. So Kogarashi gives them an idea. Now they are able to talk to each other through writing notes. During class, Chisaki and Yuuna continue talking. Chisaki asks her where she lives. Yuuna says that both Kogarashi and she live together. Chisaki is flustered after hearing that and causes a commotion and is punished by the teacher to arrange the materials after the class. Yuuna helps Chisaki and, in return, she removes her school uniform to let Yuuna examine it. When Kogarashi enter the room they are found in an embarrassing position...