The Reincarnated Demon King's Harem Development.

An Incubus is a demon of the underworld that embodies sexuality and is consumed by desire. Zenon Albanort, the pinnacle of these demons, reincarnated as a human in search of new mates. After more than ten years, Zenon had already grown tired of human females, but then an invitation arrived from the Royal Luseteria Magic Academy, which recognized his talent. At the highest-ranked academy in the human world, where promising young women, from noble ladies to tough girls, gather, Zenon's plan to build a harem begins!