The cold and distant Cheng Jiashu works in a coffee shop in an ancient town and unexpectedly meets the lively and quirky Tang Ning. A cup of scalding coffee spilled, leaving "crescent" stains on his white shirt, igniting the cold barrier in his heart. A graffiti misunderstanding caused by a highlighter leaking ink escalated the conflict to a freezing point. In the end, a crooked and awkwardly sewn new button became a silent token of reconciliation in the chaotic afternoon, quietly melting a corner of the young man's ice.
Mission: Warm growth