Sleepless Society: Nyctophobia

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.

In the first life, they are twins. The older one was called Kasalong who was raised by her mother who taught her to be sweet and gentle. She is also good at north dancing and household tasks. Since, she is of good values and nature, everyone compared her to be of godlike. The younger was called Songpeep raised by her father is cruel and selfish just like him, she was always jealous of Kasalong because she thought that her mother loved Kasalong more than her. In the second life, Songpeep was reborn as Pimpisa, the daughter of a wealthy doctor, she is a confident woman who is self-willed. In the third life, Kasalong was reborn as Pimmada, the daughter of Pimpisa, who just graduated and is clever, cheeky, and casual.