A veteran actor teaches Nagasawa Erina, who lost her virginity in her debut film, the basics of being an AV actress. Everything is a series of confusion and surprise! "No, what?" she exclaims, surprised at her first squirting. She starts off with an awkward blowjob, then a slightly painful missionary position. Her body is held firmly in place as she is penetrated from below in a series of reverse cowgirl and normal reverse cowgirl, and she is so surprised that she can't help but scream out in surprise when the cock is pulled out several times along the way. They move from side-position pistoning to missionary position, and sperm is sprayed on her face, which is surprised by the high-speed pistoning that is about to ejaculate. Erina is surprised by the succession of first-time experiences.