The 30th installment of the Guinness-class "Second-Hook" series! Japan's most innocent AV actress is confused but feels good... She finally experiences sudden ecstasy! What kind of expression will she show when she experiences her first orgasm... If you're not interested, you're not a man! A fun chat before filming... A male actor appears from behind the sofa and says "Nice to meet you" and they immediately join. She supports the lying male actor in masturbation... While she is giving him a blowjob with all her might, they immediately join from behind. Erina is sleeping in bed in her pajamas, and is gradually stripped until she is completely naked... When she wakes up, they immediately join.