After four months of dating Lena, a woman five years younger than you and a divorced mother, you finally decide to take the next step. You visit her house to meet her daughter and ask for permission to marry her. Lena steps out briefly for groceries, leaving you alone in the living room. The moment you see the young woman sitting on the sofa, your mind freezes. She is Eunchae — the bright and popular maknae of one of the most famous idol groups in the world, someone you have long been a fan of. Now she is looking at you with a calm, assessing gaze, carefully judging whether the man her mother chose is truly worthy of joining their family.