Hiroshi visited his girlfriend's house for the first time after dating her for a year. There, he met her mother, who had raised their daughter single-handedly in a single-parent household and was beautiful, kind, and hardworking. It turned out that day was her birthday, so Hiroshi joined his girlfriend and her mother for the birthday celebration that evening. As the conversation flowed, thanks to her mother's kindness, Hiroshi ended up staying at his girlfriend's house that night…
