Yeon-sook was diagnosed with dementia and gradually got worse. Her memory is gone and her time of having forgotten how to speak is going backward. The only person who stood by her was her husband, Kyu-hong, and even if Yeon-sook forgot everything, the only person she remembers was her husband himself. Kyu-hong who spends a whole day with his wife is, one day, gets a time-limited sentence. She has been everything to him for 13 years. But now she is losing her memory more and more, and he is losing his energy bit by bit.