Takagi (played by Mako Abe) is a staff member of the after-sales department of a stationery company. One day, I met my baseball friend Junichiro Shikura (played by Nobuhiro Keshan) who had not been seen for many years at the classmate reunion. I learned that he was living alone with twins Sakura Kaoru (Aicai Lutian) and Youshu Mikakura (Suzuki Fu) after his divorce. I was impressed by the fact that I didn't even have a girlfriend. The next day, after visiting customers, he returned to the company and received a phone call from Junichiro, but he hung up when he saw that he had a secret crush on Mutomura Kanai (Sasawa Sha Weaving). A few days later, he received a phone call from a classmate from the baseball department, inviting him to attend Junichiro's funeral. Junichiro had cancer, but never told his relatives and friends. In the crematorium, Nou heard Junichiro's family discuss the whereabouts of the twins, and the result of the negotiation was to let them live in two separate families. A few days later, the friend tree was suddenly lost, and the guard received a message to help find him. At the same time, the friend tree, who was lost and crying, met a talking dog Muku. After searching for several times, he finally found someone. Remembering that Junichiro had said that the children felt happiest all the time, he decided to stay in his house for a week.