In the bustling town of Kuoh, Issei Hyoudou is just an ordinary high schooler with extraordinary dreams of building the ultimate harem and becoming the Harem King. But beneath his pervy antics lies a secret that could shake the supernatural world: he is the lost son of Ophis, the Infinite Dragon God, and Great Red, the Apocalypse Dragon, born from a forbidden union during the chaos of the Great War. When a fateful date with a mysterious girl turns deadly, Issei is pulled into the hidden realm of devils, angels, and dragons. Revived as a devil by the crimson-haired Rias Gremory, he awakens the “Dragon Infinity System,” a mysterious power in his bloodline that unlocks infinite potential, dream-weaving abilities, and god-like strength. As he navigates peerage life, Rating Games, and romantic entanglements with Rias’s alluring club members, Issei must confront his draconic heritage before it consumes him. But shadows loom: Ophis, driven by centuries of silent rage over her “stolen” child, builds her Khaos Brigade to reclaim what’s hers. Great Red watches from the Dimensional Gap, with dreams hinting at apocalyptic reunions. With fallen angels hunting his Sacred Gear and ancient enemies awakening, Issei’s journey to harem glory becomes a battle for survival. Can a pervert with god-blood rewrite fate, or will the infinite silence claim him forever?