Teacher Teichianu from the magical kindergarten where he escaped comes to pick up Taruruto. At that time, Chizuru, Marumaru's mother, collapses with a high fever of unknown cause. The only cure for this illness is the Fruit of Life, which exists in the magical world. Seizing this opportunity, Teichianu forces Taruruto to promise to return to the magical world in exchange for saving Chizuru. Although they manage to obtain the Fruit of Life, which bears fruit only once every million years in the magical world, by chance, at that very moment, the invincible robot Golem from the underworld begins destroying the city to punish humanity. The only way to defeat him is also to use the Fruit of Life. Taruruto is forced to make a decision: defeat the robot or save Chizuru. Marumaru, unable to let everyone die for his own mother, gives the Fruit of Life to Taruruto, thereby restoring peace to the city. Miraculously, Chizuru also survives. Having witnessed Taruruto and the others' actions, Teichianu returns to the magical kingdom.