Sumire-chan is an 18-year-old student who can't refuse when asked by her boyfriend to develop her anal skills. A third-year member of the tennis club, she works hard at practice despite having an anal opening that expands more than a ping pong ball when compared to the net. She always inserts things raw into her ass. And not just once or twice - she loves squirting out loads of cum every time! It seems like poor Sumire-chan has already cemented herself as a whore destined for a life of prostitution...