Homer and Mamu, upon learning the story of the River God, devised a battle plan to force him to appear! In their confrontation with the River God, Homer and his companions found themselves in a fierce struggle... Will they be able to defeat the River God and obtain the teeth of the Demon King?

荷马和马明听说了河神的故事后，便展开了作战计划，迫使河神现身！在与河神对决时，荷马一行人陷入了苦战……他们能否打败河神，取得魔王的牙齿？