Yukari, an H-cup beauty, visits the director's editing room. When asked to perform a titty fuck test, she shyly confesses she has no experience. Director Kito, a hardcore tit fetishist, takes on the role of instructor and the titty fuck test begins. Meanwhile, Mei na arrives for her audition—petite in stature but proudly boasting G-cup breasts. With her peculiar sensibility, she claims her erogenous zone is her knee, leading to intimate scenes of tongue play and licking.