The series is about an incident that takes place when the owners of the boarding house called 'Guest Summer Palace', which breaks stereotypes, and boarders with secrets gather to find Lee Seol who disappeared 13 years ago.
A woman works as a special makeup artist. Because her heart was broken in the past, she finds it hard to love again and has a cold heart full of sadness. She unexpectedly falls in love with a humanoid robot programmed to be the perfect boyfriend and all the while a top star is competing for her affections as well.
This drama is about various contestants who take part in a game show with a prize of 10 billion won wherein contestants are encouraged to cheat and lie. The contestants who able to cheat the others will wins the prize but but be in debt if he/she loses the game. Contestants include genius swindler Cha Woo-jin and naive college student Nam Da-jung. Meanwhile, Kang Do-young will play the MC and planner of this game show.