A female white-collar worker who lives a two-point and one-line life every day wanders in a foreign city. During countless lonely nights, a man often appears in her dreams. She cannot see his face clearly, but the remaining attachment after waking up has been lingering around her. Who is he? Until one day, she discovers a rose ring in an antique store. This magical ring takes her through time and space, and becomes involved in an obsessive love entanglement and a family power struggle. Can she use her intelligence to escape from crisis after crisis? Who is her destined lover? Can we continue our relationship in this life?