| Behind a beautiful face hides a cruel nature—Baek Ah-jin, who sees through and manipulates others' hearts. After stepping on the sacrifices of many to reach the top, everything begins to change the moment she arrives there. A woman wearing a mask to escape hell and climb to the highest place. And the story of the Xs being brutally crushed by her. |
| Name | Character | Episodes |
|---|---|---|
| Kim Yoo-jung | Baek Ah-jin | 1 |
| Lee Yul-eum | Lim Lena | 1 |
| Gu Bon-jin | Jae-oh's Father | 1 |