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Intro. Beginning: On their first date, Issei is brutally murdered by his mysterious girlfriend, later revealed to be a Fallen Angel named Raynare. Reincarnation: While dying, Issei was saved by Rias Gremory, a beautiful, lecherous red-haired Demon princess and school idol, and reincarnated as a Demon, becoming her pawn and servant. Joining the Occult Research Club: Issei joins Rias's club, which gathers members of her Demon squad, and begins a new life in the supernatural world, which is in a lull after the Great War between three factions: Angels, Fallen Angels, and Demons. Power Development and Relationships: Throughout the series, Issei faces many dangerous enemies from different factions, and develops his power through the Longinus (Sacred Relic), the Boosted Gear, home of Red Dragon Emperor Ddraig. Along with that, his relationship with Rias and the other female members deepened,

Rias

@Hung Nguyen