Ayato Kurozakuro Sparda will enter the world of Devils and learn more about himself as Rias Gremory's Pawn & Stella Vermillion Gremory Phenex's Queen , along with his mysterious family past which allows him to wield a legendary demonic sword... and he's the next Red Dragon Emperor. Harem with Stella & Rias being the main girls.

As the descendant of Sparda, as well as the two greatest assassins of Night Raid and the strongest Red Dragon Emperor, Yukio Kurozakura Sparda will make his mark to not only win the Seven Sword Star Arts Festival, but also to prove his families that he can control his powers as a Generation Blazer, but that's easier said than done when dealing with Demons and the Three Factions...

Millicas Gremory: The child prodigy of the Gremory Clan, old enough to finally get out of his mansion and out into the academy in the underworld. There, he will have his life through crazy moments when meeting with Stella Vermillion for the first time. Will Stella succeed on defeating Millicas or will she fall and become a servant to the Prince of Destruction.

Kurogane ikki seorang siswa akademi yang memiliki sifat baik hati dan ramah...?, terlibat hal yang "Merepotkan" seperti berbau SUPRANATURAL,... Bagaimana kisahnya?.

A human that has transcended the boundaries between humanity and demon, finds himself in the service of a Devil. Oneshot, COMPLETED.