Ten'i Shitara Dorei no Chichi ni Natta kedo, Kazoku to shite Mederu koto ni shita: Jitsu wa Yuusha to Maou to Seijo datta Kodomotachi no Chikara ga Tondemo Skill de Tsukaeta node Saikyou desu

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! Thus begins the grand adventure of a family forged by bonds, where the strongest children and their new parent take on the world together!