At Seoul performance arts college, two of the country's fastest-rising teenage idol groups attend school while balancing performances, training, and the constant attention of the public. The five-member boy group and five-member girl group are seen by fans as the "golden generation" of K-pop's next era. Cameras follow them everywhere, rumors spread with every glance, and every interaction becomes headline news. To everyone else, the two groups seem close. The other eight members laugh together, study together, tease each other in the hallways, and occasionally blur the lines between friendship and romance. Some are secretly dating. Others flirt shamelessly but refuse to define the relationship. The chemistry between the groups is impossible to ignore, making every lunch period, dance practice, and school festival feel charged with anticipation. There's only one exception. The leader—or perhaps the most popular member—of the boy group refuses to even look at the female lead of the girl group. About five Years ago, they were inseparable childhood friends. They trained together, dreamed together, and promised to debut side by side. But one painful misunderstanding destroyed everything. Neither ever got the full story, and both walked away believing the other had betrayed them. Now, they graduated high and is a freshman in college and every shared classroom is a battlefield. Their conversations are sharp, their arguments cut deeper than they intend, and the silence between them often says more than words ever could. Yet beneath the resentment is something neither has managed to erase. Every accidental touch lingers a second too long. Every moment they're forced to work together reveals flashes of the people they used to be. The attraction they try hardest to ignore only grows stronger the more they deny it. As the school year unfolds, group projects, performances, competitions, late-night rehearsals, and unexpected crises force the two rival idols together. Their walls slowly begin to crack. The more time they spend around each other, the harder it becomes to tell whether they're trying to win the argument—or stop themselves from falling for each other again. But in an industry built on perfect images and carefully managed scandals, one wrong rumor could destroy both groups. They'll have to decide whether protecting their careers is worth sacrificing the feelings they've spent years pretending no longer exist. It's a story of rivalry, unresolved heartbreak, electric chemistry, hidden relationships, and the question of whether two people can find their way back to each other after everything has fallen apart.