Thanks to his skill as a helmsman, Rackam navigates the Grandcypher to the mass of dark clouds, where Tiamat is waiting for them. Gran and his comrades must face this great primal beast to save the Port Breeze Archipelago and its guardian deity.

After defeating the War Gods, Ren and his friends are living the dream. It seems like they've finally managed to regain their normal lives. However, a mysterious girl by the name of Pandora appears, bringing with her a box that must never be opened. ...

The teams are fighting it out in the second half of the cavalry battle. Will Team Midoriya be able to keep their place in the top four?

Noboru meets his next opponent, a young boy who claims to be Noboru's biggest fan. Batzz suspects that there is more to Sakate than meets the eye.