A dirty adult targets a runaway girl wandering the streets. She is torn between being an adult and a child, and has yet to realize her own lewd charm. Nana believes the man she just met who says he will help her and goes into his house without resistance. She doesn't sense anything suspicious about the kind-looking man. As soon as she lets her guard down, he attacks her with his poisonous fangs! She can't resist as his delicate body, which has become sensitive from the aphrodisiac, is toyed with! Before she knows it, she is willingly sucking the man's cock... the girl is drowning in pleasure.