When Keita's father get sick and has surgery, Keita decides to return back to his home town after graduation which may lead to the breakup of the Orange Society. Kai and Sae fights about being disabled and follows Sae and Akane's fight. Later, they make up. Akane and Shohei scheme to get Sae and Kai back together by sending them to a beach by themselves in result of furthering their relationship.