The Hardships of a Corporate Employee's Idol Debut.
Kim Yi-Wol, a five-year employee at Hanpyeong Industries and the assistant manager's daughter, has five years of experience as a fan. Today, as usual, he collapses after working unpaid overtime on idol fandom duties when he hears the news of the group's disbandment. When he opens his eyes, he finds himself back in his 20s, free of dark circles. He is given a task: to debut with the group ‘Spark’, the very group he idolized, on the condition that his sister's death be nullified. With the terrifying additional condition: failure means re-employment at Hanpyeong Industries, with no chance of transferring.
Armed with the toughness and grit honed by his proxy fandom, HR duties, and all manner of menial tasks, he vows to debut and then quit!