Because Satoru's mother is not feeling well, the restaurant run by Satoru's father has to temporarily close, even though it is Sunday. So, Hiroshi and his friends use this opportunity to make a plan to have Ochiai-sensei and Junko-sensei go on a date at a restaurant. However, the person who came to the store was Matenro, not Ochiai. He offers a "date truce" to the Hadogumi.