In the glamorous world of K-pop, **Jung Kook** is loved as a sweet idol, but secretly, he's the heir to a powerful mafia family. Meanwhile, the shy **Min YN** hides her true self—she's actually the ruthless leader of an underground gang, pretending to be a boy. When they meet, sparks fly, but neither knows the other's secret life. As they start to fall in love, will their hidden truths bring them together or tear them apart?