HMN-788 A filthy old man living in a trash room keeps pounding and cumming inside her... A female college student volunteer, Jun Perfume, is addicted to the stench and sticky sex.

Jun, a kind-hearted female college student, volunteers to help those in need. As part of her volunteer work, she visits a home where a large man with a strange smell is present. She doesn't want to enter—it's full of garbage, dirty, filthy, and disgusting. She feels fear and disgust. But her sense of justice overcomes all of that. With the sole desire to help, she steps into the home, but... A young, kind man...