Season
- Season 1 2015-05-27
Episode
- Episode 1: 3 Million Won Happiness
- Episode 2: Girl Who Walks in Memories
- Episode 3: Best Choice, Worst Choice
- Episode 4: Heaven Created by the Devil
- Episode 5: The Poor Rich
- Episode 6: Family, That Heartbreaking Memory
- Episode 7: A Chest You Can Cry On
- Episode 8: A Logical Delusion
- Episode 9: My Own Reflection
- Episode 10: Faces of the Mask
- Episode 11: Game of Lies
- Episode 12: Unhappy Happiness
- Episode 13: A Proposal and a Divorce
- Episode 14: A Spear and a Shield
- Episode 15: Target
- Episode 16: The Puppet's Heart
- Episode 17: Family
- Episode 18: Trap
- Episode 19: Vacancy
- Episode 20: Our House
Mask Season 1 Our House
Ji-Sook goes through a difficult period, due to her father's private loan. She begins living as Eun-Ha. Eun-Ha is from a wealthy family and looks like Ji-Sook. When Min-Woo was only seven years old, he became the successor of a large corporation which his family ran. Due to his position, he cannot reveal his feelings. Through his family, he meets Eun-Ha. He notices she is different from other wealthy woman that he has met. Min-Woo has feelings for her.
