Cha Yu-ri died in an accident five years ago, leaving her husband Cho Gang-hwa to raise their daughter by himself. She becomes a ghost and watches over them until one fateful day she is brought back to life by the deities and told she can become human again if she returns to her place in 49 days. Though her husband has remarried, so she must decide between her or his happiness as she slowly re-integrates back into her old lifestyle.
This is the story of a mother who died and begins a 49-day long project of reincarnation, and a husband who has barely begun to live a new life after overcoming the pain of losing his wife.
Jo Kang Hwa is a skilled thoracic surgeon. After losing his wife four years ago, he had been working as a single father until he got married again two years ago. While he seems like a caring person, he does not offer a hand nor intervene when needed.