Rosario to Demi-Fiend

The Demi-Fiend is scouting the universe for any and all allies of the Great Will when he transfers to Youkai Academy. Seeing Tsukune Aono, Moka Akashiya, and others as potential allies against the Great Will, he decides to befriends them and goes through their wacky hi-jinks. Demi-Fiend x Harem, Tsukune x Kurumu. Follows Shin Megami Tensei: Nocturne's True Demon Ending.