Mao, once the Demon Lord, exists within a cyclical conflict that binds heroes and demons to recurrent generational battles. Thwarted by hero Yusha’s incomplete sealing ritual, she is hurled backward through time, her form regressed to that of a child. Assuming a new identity, she infiltrates Yusha’s adventurer academy as an instructor, plotting to undermine the hero’s development and evade her prophesied downfall. Yet her meticulous schemes crumble against Yusha’s uncanny fortune and the unshakable loyalty of her companions, gradually eroding Mao’s resolve to perpetuate the cycle. Her past unfolds as a tapestry of isolation and duty. Thrust into the Demon Lord’s mantle as a youth, she endured centuries of hollow stewardship, her solitude punctuated only by melancholic verse scribbled in quiet rebellion. The conflict itself is a manufactured curse—an unseen power compels the Demon Lord’s resurrection with each hero’s rebirth, each iteration draining her strength until annihilation becomes inevitable. Exposure to Yusha’s party reshapes her path. Disdain fades when the group nurses her through illness, their kindness contrasting starkly with her loveless past. A deeper shift follows the return of Meigo, her former maid golem, now memoryless. Mao’s frantic attempts to shield Meigo—veering between aggression and vulnerability—reveal her growing capacity for selfless bonds, despite ingrained instincts. The cycle fractures when Mao discards her title, spurred by the party’s empathy and the Chibi Dragon’s power to devour the abstract forces of heroism and demonic legacy. Ultimately, she claims a tranquil existence as an educator, severing the chains of destiny. Her journey—from orchestrating ruin to nurturing fragile connections—embodies defiance against predestined roles, prioritizing choice over cosmic design.