Peter, a half-blood teenager, is bullied by his family for his impure bloodline and publicly jilted by his fiancée Arya. In despair, he activates the magic ring left by his father, awakens the succubus Lilith, and forms a symbiotic contract with her. Empowered by the contract, Peter is admitted to the top magic academy. However, his half-demon identity is exposed during an assessment, making him a prophesied menace that the Holy Church seeks to eliminate. After enrollment, Peter wins the admiration of freshmen with his strength, yet he suffers constant framing and assassination plots from Arya and the student council president. In the arena decisive battle, Arya augments herself with forbidden dark magic. With magical infusion from the three great demon lords and the academy principal, Peter summons the power of the sea god angel and defeats Arya. Shortly after, the Pope intervenes personally and overwhelms everyone with absolute power. At the moment of life and death, Lilith sacrifices herself and transforms into guardian armor. Peter’s father manifests and grants him his final power. Inheriting the will of his parents, Peter fights side by side with his companions and delivers the ultimate blow against the corrupt Holy Church.
