Everything was too hard for Rosé to do. Everything was out of control, her feelings, problems, challenges, friends, addiction and love? An old pocket watch was given to her by her grandmother who died due to cancer. She thought that the old pocket watch was just a piece of useless old time checker until she found out that through this, it can bring back the time from the past. And there, she can meet a girl that's so clueless to everything that's happening when Rosé did time travelling.