Junko Mizuta has only 7 seconds memory. She keeps taking memo what she did, talked, where she went every single second for social communication. CBC TV follows Ms. Mizuta for years and shows in the program she eventually decides to quit taking memo at all. She also meets a man who has the same memory handicap in the program. His memory duration is even shorter than her but he rarely makes notes.
After a few months from their first meeting, this man met a car accident although his life was saved. After the accident, he did not remember Ms. Mizuta at all but this became a trigger Ms. Mizuta's new challenge in her life.