At a magical academy where angels and devils coexist, a sacred law governs their coexistence: angels and devils are forbidden from romantic or reproductive unions. Breaking this ancient rule brings devastating consequences—permanent banishment and the complete stripping of supernatural abilities. Valkyrie enters as a mysterious transfer student, forging swift connections with her angelic classmates. Yet her heart betrays her ideals when she falls for Bulb, the most formidable devil in the academy. Unbeknownst to either of them, Valkyrie harbors an extraordinary secret: she is a hybrid, an incredibly rare supernatural being born with both celestial radiance and infernal darkness woven into her very soul. Her perception of reality shatters upon discovering her parents' gruesome deaths—engineered by Venom, a devil-turned-demon exiled from the academy exactly one century prior. With loyal friends beside her and trapped in a forbidden romance with world-shattering implications, Valkyrie must embrace her hybrid nature, challenge the academy's rigid laws, and pursue Venom to the ends of the multiverse.