Season 1 Suk Ji Soo is a kindhearted and thoughtful woman caring about the harmony of her family. Jeong Mu Young struggles through many troubles and forgiveness within his family. He doesn't really like his father because he was born due to his father's affair with another woman. Ji Soo and Mu Young's family in this drama are complete opposites...her family is happy while his family is not. Eun Ha is a girl with a cheerful personality and perfect skin with no wrinkles. She thinks importantly of people's relationships and puts much effort into everything she does to make her family happy. The drama will be focusing on different family problems faced in modern day society. Season 2 Shin Se Kyung and Shin Shin Ae are a pair of sisters who came to work as maids in Foodstuff company President Lee Sun Jae's house after their debt-ridden father Shin Dal Ho runs away leaving them to fend for themselves. Due to the sisters living their lives in the mountains, everything in the city (outside world) are both new and curious for them especially for the younger sister, Shin Ae. Living together with President Lee is his daughter Lee Hyun Kyung, son-in-law Jung Bo Suk, doctor-to-be son Lee Ji Hun, grandson Jung Jun Hyuk who is a high school student and grand-daughter Jung Hae Ri' Jun Hyuk's school deen, Kim Ja Ok, is in love with President Lee who is widowed. Season 3 Ahn Nae Sang and Yoon Yoo Sun are middle aged husband and wife. When his business goes bankrupt, this couple moves in to her brother's house and the conflict starts.