HMN-435 There are guests next to me... Working in a convenience store, after the store manager drinks a spring medicine with a hundred times the amount of semen, he becomes handsy with me! I become his practice target for internal ejaculation... Natsu Azuma

The film tells the story of the female protagonist who works in a convenience store. After the store manager drinks a spring medicine with semen one hundred times, he starts to make advances towards her. Eventually, she becomes the store manager's practice partner for internal ejaculation.