He is a brilliant math professor, with a peculiar problem--since a traumatic head injury, he has lived with only 80 minutes of short-term memory. She is an astute young housekeeper with a 10-year-old son who is hired to care for the professor. Between them, a strange, beautiful relationship blossoms.

Features eight essays in Japanese along with the corresponding English translation, as well as a basic discussion of Japanese culture, usage, and grammar.