A young man named Arata meets his end in solitude, only to find himself transported to another world. As a reincarnation gift from the goddess, he receives the mysterious skill "Chains of Life"... and a group of enslaved children?! Each of the three children possesses overwhelming potential as a Demon Lord, Hero, and Saint. To make matters more extraordinary, Arata's "Chains of Life" allows him to harness their talents, making it the ultimate skill!