A young man moves into an apartment shared by three girls with the sole intention of having sex. In this second installment, a seemingly nice guy arrives carrying a bag secretly equipped with a hidden camera. Gaining their trust through a good first impression, he seizes every opportunity to plant cameras in the bathroom, toilet, and the girls' bedrooms to spy on them. With a guy now living with them, the girls become increasingly excited—visiting the bath together every night, peeking at the man masturbating—deepening their interactions. The atmosphere grows so heated that sex seems inevitable, yet the cute, leader-type girl insists, "No sex, absolutely not." How will the man win over the girls' hearts despite her resistance?