11화: 나가사키의 쿄 과거와 그의 마음을 닿게 하고 싶은 후타바의 바람
2014년 9월 16일 방영
It is revealed that when Kou disappeared in middle school, it was because his parents divorced and he moved with his mother to Nagasaki. However, his mother was terminally ill, leaving Kou to feel helpless and alone. Futaba learns that Kou is suffering even now because he blames himself for being powerless. She wishes Kou had told her earlier and she wants to break open the door to his heart. (Source: Wikipedia)