Riser Phenex

Riser Phenex is a devil and the final antagonist of the first High School DXD series. He is a member of the Phenex family, and was chosen as bridegroom of Lias Gremory.

He has various female slayers, that give "entertainment", although already has a future wife (that never accepted this marriage). So, Issei tried defeat him in a Rating Game, and if the Gremory team wins the game, Lias will cans choose if she will marries with Rise or doesn't.

Rise win the Rating Game and goes to the Underworld to marries with Lias, but Issei with helps of Ddraig, Issei resists holy water to uses to defeat Riser, and how Sirzechs Lucifer allowed the marriage cancellation if Issei won the battle, the marriage is cancelled.

Skills
Riser like a Phoenix bird, is immortal because with pyrotic powers, cans regenerates his body.