"Idol in My Living Room" is a youth melodrama that unfolds when Joy, an excellent student at Sejong Institute, and Yeo One, a Hallyu idol, accidentally end up living in the same house.
A 'wife of a famous broadcaster and freelance entertainer' has been doing well for 12 years. Due to a mistake, her life falls apart overnight However, she learns that there was another reason for her downfall, and so begins her revenge.
Baek Ho-rang is a high school student. Due to her pretty appearance, she is popular on social media and at her school. Yet, Baek Ho-rang only has one friend, due to her condescending personality. Baek Ho-rang encounters a problem. She learns that someone is trying to unveil her secret. To find that anonymous person, Baek Ho-rang joins her high school's broadcasting club. Go Eun-taek is the chief of the broadcasting club. He is a perfectionist and respected by the club members.