Jungwon lives with her daughter, Yewon, and her mother, Jayoung. Jayoung takes care of Yewon's upbringing while Jungwon is buried in work. One day, Jayoung suddenly collapses and is admitted to the intensive care unit. During the process, seeing Jayoung's rice balls and the hand she held in her final moments, Jungwon recalls her childhood and feels regret.