The Japanese scientist Sekai [=the world], seeking a bright future for mankind, invents a motor that burns water. His wife Hikari [=the light], dies when giving birth to their son Aun [the beginning and the end of all things]. As a toddler Aun discovers an unusual sea snail at the beach. Sekai uses it for experiments i…

由于被禁止参加职业比赛，女子相扑冠军今日和不得不在 21 岁的时候退役。为了永久改变日本民族的运动，今日和开始了一段挑战传统的非凡旅程，但无论是赛场内还是场外，等待她的都是重重阻碍。