Sex Exchange [Uncensored] 2 Episodes

Hikaru is infatuated with his neighbor, Mioto, who is in a relationship with his friend, Hakuro. He secretly observes them through a peephole as they engage in intimate moments. At the same time, Hikaru is involved with Akimi, who discovers his spying. She agrees to keep his secret on the condition that he assists her in orchestrating a partner swap, as she has feelings for Hakuro. However, it becomes clear that Akimi and Hakuro have devised a plan to involve Hikaru and Mioto in a four-way orgy.