Aika Sumeragi, a high school age C-Class salvager, is hired by class president Eri Shinkai to pilot her salvaging vessel. After introducing Aika to the treasure hunting club, and revealing coordinates hidden in a marking on fellow classmate Karen Minamino's chest, they embark on an adventure to see where it leads.
Elenco: Sakiko Tamagawa , Atsuko Tanaka , Hiroko Konishi , Rei Sakuma , Kaneto Shiozawa .