The series has seen over 80,000 downloads in total!! This is a live-action adaptation of two of the hugely popular works by the circle: Momojiru Teien, "Kunikida Senpai's Secret" and "Kunikida Senpai's Secret: Continued"!!

Izumi, a junior in the literature club, sneaks a peek at an erotic novel that her senior in the club has been secretly writing. A gentle and quiet girl, she is taken aback by the obscene content, which is completely unimaginable for her normal self, but ends up having sex with him. From that day on, she continues to perform the acts described in the novel that her senior writes... The novel is a manifestation of her senior's desires, and there are many extreme situations in which she is treated like a tool. However, the real senior is a masochist who desires to do things like deep throat, have creampie sex, and be treated like a sex toy. Following their desires and instincts, they spend their days having sex together.

The more quiet a girl seems, the more lewd, erotic, and perverted she is.