Since Sun Young’s disease advanced faster than everyone expected and she started forgetting things faster, Ri Hwan and Haeng Ah spend their individual time with Sun Young. Because Sun Young doesn’t remember her happy moments, her family invents each day different things to celebrate.
Thinking of ways to make Sun Young happy every day, Ri Hwan, Haeng Ah and their family from the store prepared a birthday party for Sun Young. She remembers less and less everyday so they find different excuses to make her happy day by day and for them to enjoy Sun Young’s presence as much as possible.
After giving presents to Sun Young, Haeng Ah found Ri Hwan sitting alone in the dark. He was thinking about an incident that happened before he and Sun Young arrived at the party. Sun Young went to the bathroom, but she forgot how to open the door to come out. Scared, Sun Young begin screaming and crying. When Ri Hwan opened the door for his mother, she already forgot about that incident.
Ri Hwan received his tests results. After finding out the answer, Ri Hwan went to Heang Ah and told her that the test results showed up that he didn’t inherit his mother’s disease.