When Chiharu is separated from his boyfriend, he goes to his sister’s house. My older brother, who is a college senior, welcomes me, but my sister urges me to look for work as soon as possible. Yasuo finally becomes unemployed and can not talk to his wife who works hard, and she worries alone. Then my sister goes on a business trip for a week, and two of them are at home, Chiharu and Yasuo are surrounded by subtle feelings and become love. The two, who have spent a week with fun, get nervous when it comes time for them to come back. Then Chiharu left home with a letter and left home, and Yasuo, who met her sister, returned to her daily life.