After a sudden and unsatisfactory demise, middle-aged businessman Ryoma Takebayashi finds himself reincarnated by three great gods as a child in a new world of swords and magic. Embraced by the gods, Ryoma chooses a tranquil life in the forest, focusing on magic, hunting, and his peculiar fascination with tamed slimes. Through his dedicated research and nurturing of different slimes, including newfound species, Ryoma embarks on a carefree fantasy of rediscovery and companionship in a world of benevolent souls.