The Dai-Gurren arrives at the edge of the sea. While the mobile fortress is being modified, Team Dai Gurren takes this opportunity to relax and enjoy themselves . . . except for Yoko, who tries to outdo Nia at beach games without any success. Once the Dai-Gurren is sea worthy, the team sails on, but they are attacked by marine beastmen led by Adiane. Gurren Lagann proves to be more than a match for Sayrune, forcing Adiane to grab Nia. However Yoko manages to shoot at Sayrune through Nia's hair, enabling Gurren Lagann to destroy it.
Afterwards, a grateful Nia asks Yoko to trim her shot-up hair.
Tropes in this episode:
- Beach Episode: Rather self-evident.
