Mizuho, ​​who works as an insurance saleswoman, is having a hard time getting the number of contracts she wants, and her boss urges her, "You don't have to come back to the office until you get a contract!", so she heads off to a certain house to make a sale... Mizuho is determined to get the contract, and she becomes so engrossed in her sales that she loses track of time and suddenly realizes it's night. "You don't have to come back to the office!" The words of her boss flash through Mizuho's mind. So Mizuho comes up with a bold plan to stay overnight at a customer's house...