Akiko is a friend of Saya's, and Saya is her tutor. She's tomboyish and rough around the edges, and Saya and Akiko just seem to be good friends, but before you know it, she's having a steamy time with her and the teacher in Saya's room! Guided by Saya, who looks at her with amusement, the teacher inserts himself into Akiko, and as he listens to her cries of pleasure, today's lewd lesson begins!