This is a Canon Character.
Kurumu KuronoEditKurumu Kurono is one of the main females in Rosario + Vampire. She's a Succubus, and often trys to Seduce Tsukune in the anime, even with strategys as simple as pressing her breasts on his chest. Despite her nature, Kurumu is actually a pure girl, and is also a kind friend to the Yokai gang.
*Alan from is a the Dark Pentagram created by Me Terrin Auh.