Kent Ōnarī, a former company employee, was reincarnated into another world as the strongest sage by chance, but he didn’t use his cheat abilities he had been given and lived a self-sufficient life in a remote church. One day, his older sister ran into his house with three children. Kent lived with his wife, sister, and the daughters of a mage, a swordsman, and a summoner, as if they were his family. “Dad, you’re so strong and cool! Please teach Ashuri magic too!” “Okay. First, watch the spirits’ movements closely…” “? You can see the spirits???” “Yes?” — “Noah, I killed a big bird! Now it’s going to be bird casserole.” “Kent, that’s the legendary dragon…” — “Papa, Fio, I want to ride Pegasus-sama…” “Oh, good. I’ll summon anything you want. What color Pegasus do you want?” His daughters love Kent very, very much. And— “It’s like we’re a married couple…” At night, he spends a warm time with Stella. This is how the happy slow life of an old wise man began.