

Grace chooses mahjong over her granddaughter, leaving Coco in the kitchen. Coco manages a brief call to her mother Rita before her smartwatch dies, during which Rita senses something is wrong. Desperate, Rita repeatedly calls her mother-in-law, but the noise of the mahjong table drowns out her calls. She then contacts her husband Leo, only to be dismissed while he is with his first love. By the time Rita finds Coco, the child has succumbed to gas poisoning. Leo refuses to accept the tragedy born of neglect and misplaced loyalty until he sees Coco's portrait at the funeral home.

In his past life, musician Zack Shelley was framed by his adopted brother Zed Shelley and fiancée Ruby Lewis, left disabled after seven days trapped in a mudslide, and died betrayed by his own sisters. Reborn on the day of the disaster, he is determined to survive and reclaim his stolen life. Despite Zed's efforts to sabotage rescue attempts, Zack endures six grueling days and escapes. He exposes Zed's plagiarism at a pivotal piano competition, but his sisters, Flora and Luna, turn against him even more. Heartbroken, he severs ties with his family. With the help of business titan Whitney Lynd, he defeats Flora in a public contest and unmasks Zed at a high-society banquet. By the time his sisters overhear the truth, it's too late—Zack has already moved on, ready to start a new life abroad, leaving his past behind for good.