Shiori Houjou
Adviser of the art club. She is 23 years old, although she have a looks of a primary school grader. She hate when others treat her like a kid, but that doesn't stop her from acting like one. Yuta never knew that they had a club adviser, because he had never seen her before club's summer trip. Turned out that it was Mikamoto El's fault—because she had set up a barrier on art club's room so no other human than Yuta could enter.