Dungeon Builder: The Demon King's Labyrinth is a Modern City! (Manga) Vol. 12 — Rui Tsukiyo

A demon lord decides to break from the evil mold when building his dungeon–and develops a pleasant city instead!In a world where demon lords build dungeons and devour human emotions, one rookie demon lord, Procel, has a new idea. Procel seeks to build a revolutionary new dungeon where humans and monsters can coexist. But first, Procel must defeat the Wind Demon Lord. Based on the light novel series in Japan, this sexy fantasy tale has built something truly special!