Sumo Do, Sumo Don't - Season 1 Episode 9

Ryota trains hard for the tournament, with Honoka advising him. Natsuko and Arisa are deeply moved to see the team united. Honoka's graduation is approaching, and the thought of parting ways with Ryota saddens her. Meanwhile, she hears that Natsuko and Aoki are planning the first-ever co-ed tournament. She meets with the director and expresses her desire for Kyoritsu to join but is told that they would have to win a league tournament in order to do so. On the day of the tournament, Yuma fails to show up. Without any other choice, Ryota and the remaining members compete and go up against Shikokukan University.