Sumire, who is plain and shy, is an otaku girl who likes erotic novels so much that she masturbates secretly in the classroom. One day, when she delivers the homework that her barely passing childhood friend Tatsuya asked her to bring to his house, she is surprised to see a morning wood dick...! She is very interested in the male organ she sees for the first time, and she can't stand it, so she inserts it raw into her pussy! Sumire, who is captivated by her first pleasure and a cut dick and learns the pleasure of sex, starts to extract semen from everywhere from that day on...! She wiggles her plump ass in the living room and creampies a thick dick in a bouncy cowgirl position! Even though she has friends, she secretly cocks her ass and ejaculates explosively in the classroom! Even if she ejaculates in the nurse's office, she doesn't pull out and creampies with piston thrusts 5 times! Sex is so good... it's the best!