Yuki, the only female repairman, arrives at the client's residence with her two colleagues, Iida and Someya, and their manager, Takimoto. The job is to repair the plumbing, but it's scorching hot outside. The two men are understandably unhappy with Takimoto's instructions, which call for the two men to work on the outside pipes while Yuki and Yuki work on the air-conditioned second floor. After a while, the work on the second-floor toilet is completed smoothly, and Yuki reports this to her manager, but Takimoto unzips his pants and demands that Yuki take his dick in her mouth...