As a mutant zombie swarm approaches, Noah Rivers, a disgraced member of the idol group SUP under S Entertainment, faces imminent purge amid rising hostility. Plagued by betrayal from his group, crushing debt, and public hatred, Noah reflects on his trapped life under a controlling contract. Meanwhile, a sudden emotional surge from viewers triggers a portal called Apocalyptic Star Journey, promising to rewrite Noah's fate. Just as the purge is about to start, Noah's survival becomes uncertain, setting up a pivotal moment where his future and death hang in the balance.