Karen, a literature-loving girl who applied online. She refuses to show her face, so the interview begins with her wearing a mask. She has a straightforward personality and mentions being interested in lesbian experiences. The rookie AD present, Hashino, is invited to join, and they conduct a sensitivity check. It turns out Karen has a highly sensitive body, so they proceed to make her masturbate, with Hashino assisting. Since Karen expressed a desire to get excited outdoors, they hand the camera to Hashino and film her climaxing on the street using a remote-controlled vibrator. Moving to a hotel, Hashino gets into the role of an older sister wanting to support Karen. Originally intending to film Karen having sex with a male performer, things take an unexpected turn into a reverse threesome with two women and one man. Karen is intensely stimulated as both Hashino and the male performer pleasure her, clearly enjoying herself. Hashino seems like a genuinely kind person, though there's a slight sense of awkwardness too.