Jichou Shinai Motoyuusha no Tsuyokute Tanoshii New Game

After getting hit by a truck and being reincarnated in a different world, he's greeted by a beautiful woman "Long time no see Master."

A restart in easy mode from level 1 in the peaceful world that he once saved. Following the world's strongest sage maid, training slave girls to be strong, converting a thief girl and finding new comrades! Even the luxurious residence and the strongest equipment remain as he wished!

(Source: MU, edited)