Tsutsui Hikari (a.k.a "Tsuttsun") is a high school student who is content with his virtual life of anime and video games. One day, he gets stuck cleaning the pool with Iroha, a real live girl who is stylish, sassy and known to be easy with boys ... and she aggressively approaches him! Tsuttsun, who has few friends and lives in his own world, finds himself smitten by the confident and wild Iroha ... and his whole world is turned upside down!! It's the awkward and pure love story of a boy who experiences relationship for the first time.

Gamba, a town mouse with a brave spirit decides to go on an adventure to discover the ocean. On his way, he meets a troubled child mouse, Chuta. He says his family and other mice on a nearby island have been killed by a clan of weasels, led by the terrifying Noroi. Gamba promises to save the island, his family and the other mice. He and his friends team up to defeat the evil Noroi and his clan.