It has been several months since Akari, my beautiful son's wife, started living with my father-in-law, Shigeru, who passed away. When she moved in with him, she started trying in earnest to conceive, which she had been trying to do for some time, but it didn't seem to have any results. After undergoing a test at her infertility clinic, it was discovered that there was a problem with her husband's sperm...One day, her husband was scheduled to go on a business trip for three days and two nights. Akari and Shigeru are two people under one roof