Elle, a celestial being turned mortal, abandons her angelic duties to assist a misfortune-ridden middle schooler, orchestrating the transfer of his curse into a fragile orb. When the ritual endangers a child, she sacrifices her divinity to save them, adopting the surname Ōmura to embed herself within his family and classroom. Her adjustment to human norms proves turbulent—clumsy encounters with modesty and literacy spark social blunders and peer curiosity.

Beneath her guileless cheer lies a fractured past: childhood memories erased after her mother Ruelle’s death and the demonic sealing of her twin, Isra. This legacy binds her to the protagonist through Ruelle’s guardianship of his father, intertwining their bloodlines. Their bond deepens beyond protector and charge, resulting in Prayer—a daughter born from an angelic egg, conceived without mortal intervention. Prayer’s survival falters as Elle’s repeated resurrections exhaust her energy, yet her essence lingers within both parents, promising rebirth.

Navigating human fragility and celestial duty, Elle’s journey oscillates between lighthearted innocence and harrowing trials—demonic incursions, apocalyptic harbingers, and a fraught love triangle with a childhood friend. Her evolution mirrors her dawning grasp of emotion and identity, clashing with her angelic roots. The narrative crescendos as she confronts Isra’s corruption, pivoting their personal strife into a cataclysmic clash between realms, where sacrifice and legacy collide.