After completing seven years of volunteer work overseas, the trẻ man returns to Tokyo for a ngắn visit to his uncle and aunt who live in an apartment in the city to say hello. Upon meeting his "Aunt Kaoru from Tokyo" for the first time in seven years, he finds her still as đẹp and intelligent as ever. "It's been a while, thank you for coming," the trẻ man says, as his uncle and aunt kindly invite him to stay the night. However, something is on the trẻ man's mind...