When high school student Hitoyoshi meets his new maid, little does he know that the beautiful yet sullen woman has a dark history as an assassin.

An adventurer who served with the strongest fighters finally sets out on his own, in middle age.

Betrayed and on the brink of death, genius exorcist Haruyoshi Kuga still has an ace up his sleeve—a reincarnation spell. With a successful incantation taking him to a new world reborn as Seika Lamprogue into a distinguished wizard family, his only wish is to find happiness. But as Seika’s onmyō art exceeds this world’s magic, will he be able to live an easy, happy-go-lucky life?