Two months after losing her virginity in her debut film, Japan's most innocent AV actress, "Erina Nagasawa," is still not used to men, so in this third film we take a prank with unscripted sex! Eri-rin's troubled face explodes throughout the film! She hasn't been shown a script since her debut film, and the one-on-one sex that starts with an interview suddenly develops into a threesome. Sex with toys and lots of lotion in a school swimsuit. In a prank on a hot spring trip... an ordinary male guest comes into the open-air bath where she is alone... Blowjob, squirting, and facial in the guest room bath. What will Erina do when the innkeeper confesses his feelings?