Two women from seemingly-opposite backgrounds both navigate the difficulties of mothering adult children.

A man has the intelligence of a 7-year-old due to an accident. Han Yoo Jung is a woman with a bright and positive personality. She aspired to become an announcer, but her poor family background made her give up on her dream. She now works hard to support her family. She also lives in atonement for her fraternal twin sister's wrongdoings.