Ao no Hako Episode 9 English Subbed Episode Title: I'll Be Rooting For You Episode Description: Upon learning about the upcoming exams, Taiki begins to study as he observes Chinatsu's team practicing for the nationals; seeing this, Taiki instead practices his badminton skills, leaving Kyo and Hina worried. The badminton club is tasked to write their goals, which Taiki uses to write on improving his skills. Taiki balances his studies and badminton practice as he continues to hear of Chinatsu's progress, discouraging him. Sometime later, Taiki falls ill after overworking himself and wonders if he failed to achieve his promises...