After Taiki pushes himself too hard, Chinatsu nurses him back to health. Even though he never knows the right thing to say, he feels like the distance between them is shrinking rapidly. But with Chinatsu always on his mind, how can Taiki face a courageous Hina suddenly inviting him to the summer festival?...Rated:T AO NO HAKO © 2021 by Kouji Miura/SHUEISHA Inc.