One day, the life of middle-aged Japanese businessman Takebayashi Ryouma came to a rather sudden and disappointing end. Ryouma had never had a blessed life, but after his death, three great gods sought his cooperation and reincarnated him as a child in another world with swords and magic!

Receiving a most cordial and divine welcome from the gods, Ryouma decides to live leisurely on his own in the forest for the time being. Working diligently at magic and hunting, Ryouma’s greatest passion comes to be researching his tamed slimes?! Training a variety of slimes (some newly discovered), the curtain rises on this easygoing life fantasy celebrating a second life with kind people in another world!