Tadona, born Asahi Omichi, is among five middle school girls grappling with unspoken tensions and stifled emotions as graduation approaches. Their fragile dynamics shift abruptly when a mysterious phenomenon thrusts them into a fractured fantasy realm on the verge of annihilation. To halt its collapse, they must channel unity through rhythmic dance—a power stifled by their unresolved insecurities and hesitancy to voice vulnerabilities.

Clashing perspectives and muted frustrations initially sabotage their efforts, mirroring the world’s disintegration. Yet as apocalyptic threats escalate, urgency forces the group to confront their barriers. Tadona’s personal growth intertwines with the collective struggle: each challenge demands trust, empathy, and the courage to articulate buried truths. Through relentless trials, their faltering synchrony evolves into cohesion, blending individual breakthroughs into a shared resolve. The final act hinges not on individual heroism but on their hard-won harmony, proving that collaboration forged through open hearts can transcend both crumbling worlds and crumbling relationships.