Ten-year-old Yeon-ah wants to celebrate her mother's birthday. She decides to reach out to her dead father, Jeong Hoon, by mimicking a video on YouTube showing how to contact those who have passed on. To prepare the food for the necromancy, she tries to make dalgona, which she used to make with her father. But she can't seem to get it right. She finally succeeds after finding a video of her father on an old camera that provides the proper instructions. She then organizes the birthday party for her mother with dalgona to enjoy when she gets home from work.