Set in a white room with a single bed, 'THE F1RST SEX' captures the challenge of four AV actresses engaging in unscripted, unacted, no-retake, one-shot sex. This work questions what AV and sex really are, realistically depicting the actresses confronting sex as their true selves. Opinions on the camera work are divided, with some appreciating its simplicity that allows enjoyment of sex itself, while others desire more creative angles. Particularly, there are complaints about the male actor's head blocking the view at crucial moments. However, the performances of the actresses, including Sawakita Minami, and the innovative and erotic composition are highly praised, making it a recommended work for those who want to enjoy sex itself.