A single man is apartment hunting and gets shown around by real estate agent Ito Risa. The unit is spacious with ample storage, rents for 60,000 yen, and is a 10-minute walk from the station—but it's slightly over budget with no room for negotiation, so he's about to decline. Risa, however, continues to sell its appeal, emphasizing thick walls that prevent sound from leaking, even with a girlfriend around. Then she teases, "Want to test if the sound really leaks?" When he asks how, she immediately replies, "With me." Huh? She subtly invites him with a seductive look, saying, "You know, let's have sex." He confirms, "Right here?" and she instantly answers, "Right here," shooting him increasingly lustful glances. After making sure he won't accuse her of harassment later, they proceed to check for sound leakage by having sex in the living room and closet, moaning loudly. She ends up squirting in the closet, sealing the deal—there's no way he can back out now. The result? An amateur creampie session with slender office lady Ito Risa, the real estate agent who seals contracts with her body. In the end, she says, "Thank you for signing the contract," finalizing their intimate arrangement.