Chen Chuyun, a quiet and well-behaved young woman, has only ever done one rebellious thing: becoming an online artist. One evening, her peaceful life is disrupted when a woman named Liu Qian appears in her home, claiming to be from a distant planet and warning her of a mistake in her compatibility with Han Zi'ang. Unconvinced, Chen dismisses her claims, but Liu Qian is determined to fix the issue in her own way.
Lu Fanfan, Liu Ruochen's nutritionist, falls for him but is rejected. After resigning and moving into her own place, she mysteriously travels back in time and meets Liu Ruochen as a 20-year-old.