If I had a tutor like this, I would study hard! Yukina, a female college student, has started working as a tutor. The boy she is in charge of seems to be lacking in concentration and is not getting good grades...If she can relieve his throbbing dick, he will be able to concentrate better! This is Yukina's brilliant idea (?) and she starts sucking him! "There's still some left, right?" Even after he cums, she doesn't let go of his dick and continues sucking him, squeezing it all out! She gives him a blowjob and has sex with him, making him cum a lot for her student!