His goal is to become a professional sumo wrestler! Ushio Hinomaru goes to visit Ishigami High School, famous for it's sumo program, but arrives at Odachi High School by mistake. There he meets Ozeki Shinya whose dojo has been overrun by delinquents.
Hinomaru is finally doing sumo in school! However, the club needs five members in order to participate in group tournaments. Ozeki and Hinomaru try to attract new members at club activity day where they meet Kunisaki Chihiro from the wrestling club.
Tsuji Kirihito has joined the club as a supervisor. The club's first step on the road to the national tournament is facing Eiga University High School in a practice match.
Kirihito orders the club members to harvest seaweed and do many other strange things, like standing on an unsteady boat to improve their balance. The club members admire Kirihito's methods, but have doubts about his experience and abilities.
The Dachi High sumo club will be practicing with Ishigami High School, a powerhouse which took second in the Kanto sumo tournament. The former middle school yokozuna, national treasure Mikazuki Munechika, Sada Mitsuki is enrolled there.
Hinomaru goes to practice at the Shibakiyama Stable, but he is so small they do not pay him much attention until he proves his prowess against a wrestler who had recently graduated. The relaxed atmosphere becomes tense as the practice intensifies.
The inter-high prefectural prelims have begun! The unknown Dachi High was initially laughed at, but Hinomaru easily defeats a student from another school. After winning their initial bouts, they begin their match with the fated Ishigami High School.
The score is 1-1 as Yuma's bout against Kanamori begins. Before the match, Yuma went to the dojo where he learned karate before becoming a delinquent. He apologizes to the master for the things he's done.
Immediately following the team battle, the individual tournament begins. Ozeki worries about fighting his teammates, while Chihiro is thoroughly excited. Meanwhile, Hinomaru hides the arm injury he received in the team tournament from the others.
Following their heated tournament battle, the Dachi High sumo club returns to school to find a banner congratulating them on their victory. They are taken aback after learning that a video of the tournament has been circulating around the school!
The Dachi High sumo club has been invited to train with the Shibakiyama Stable. At Hinomaru's suggestion, they go to visit Nagoya Castle. Hinomaru then volunteers for a sumo event there and ends up challenging another student.
Reina and Hinomaru are at former yokozuna Shunkai's dojo. He orders them to prepare curry for thirty people with 100 yen. Hinomaru and Reina try various approaches, but all fail.
Chihiro takes Ozeki and Hori to spy on Kanazawa Kita High in order to test Ozeki's courage. Kita High's captain Aizawa refuses to pay any attention to them, criticisizing Dachi High for lacking tradition and history.
Shibakiyama takes Hinomaru to a clinic he trusts to treat his arm. The clinic's Dr. Kanie initially refuses, saying that urgent treatment won't help because Dachi High won't beat a powerhouse like Kanazawa Kita High.
Following the first day of the team tournament, Dachi High heads to the practice area. The Ishi High team, including Sada, comes to see them. Sada suggests having Ishi High stand in for Tottori Hakuro.
Kei has been practicing the reverse, which some consider a dishonorable technique. Hinomaru fights head-on, and Kei worries that he'll stain it. Even so, he wants to get one win for the team, and faces an opponent far larger than himself.
Chihiro will face the Hakuro sumo club's Kano. Chihiro was having trouble with his powerful sumo, but then counters with his characteristic fighting sense. But being cornered brings out Kano's fighting spirit and he grabs Chihiro's belt with both hands!
In the match against Hakuro, the fifth bout is about to begin. After losing to Kuze, Tennoji thinks of himself as a challenger and works to live up to his teammates' expectations and become a yokozuna again.
After the club secures Hinomaru's bout with Kuze, they decide to take it easy, but Reina knows Hinomaru is only at his best when the rest of his team fights as hard as he does.
After an initial draw with Rion, Kirihito overcomes his lungs to instantly defeat is opponent in the follow-up bout. Despite a few losses during the tournament, the Dachi club's spirits remain high!
As the final bout rages on, the team members all come to their own realizations about what sumo really means to them. Who will be victorious and make it to the top?!
