Original Webtoon Stella Salcibia discovers that someone has taken over her body while she is trapped inside a mirror. "Give it back! Give me back my body!" When they finally meet again, her anger and sorrow transform into a painful plea. The other person responds with silence, leaving without a backward glance. She can only lament helplessly within the mirror, "I can take her life back." It's as if a devil's temptation beckons her. "But before the world realizes that what should be one has become two, before the world chooses to erase someone, be the one and only Stella."