This is "Koharu-chan's" first appearance! It's a hidden camera shoot by Sakai. Since she has a daytime job, she wears a mask to prevent her face from being revealed. However, the mask is removed during the main shoot. She's called to a hotel and immediately receives a blowjob. The blowjob is intense, both physically and in its wetness. They insert her from behind while she's standing up, and it's definitely audible to anyone passing by in the hotel hallway. After moving to the bed, they observe her pussy.