Mizuki, a Moon Demon Fairy with traces of humanity, travels with her friends, Aiden and Star. Together, they’ve faced many dangers, but none as relentless as the warlord Zalmar and his son, Vaelin.

Zalmar seeks to reshape the world in his image, using his son Vaelin as his weapon. Vaelin, cold and merciless, challenges Mizuki in a fierce battle. Their clash shakes the heavens, but Mizuki triumphs, shattering Vaelin’s soul. However, a small spark remains, allowing him to regenerate. Though weakened, Vaelin isn’t gone, and Zalmar’s looming threat endures.

One day, snow falls, and a strange foggy mountain emerges before Mizuki. Her friends, Aiden and Star, remain inside, unaware of what’s unfolding.

Two ghostly figures appear from the mist, leading Mizuki up the mountain. At the summit, she finds Zalmar, waiting for her.

"You came," he says, a dark smile creeping onto his face.

Mizuki turns to leave, but the icy figures block her way. Trapped, she realizes Zalmar had been waiting for this moment.