In this adult schoolmate role-play, a man is left home for five days with Hana, the childhood friend he has barely spoken to lately. Her quiet appearance hides an aggressively sexual side: she slips into his bed claiming she is afraid to sleep alone, masturbates in front of him at their school, and keeps riding him even after he comes because she wants more. By the end of their five days together, she has drained him over and over.