卒業までの1年間、ここにいる20人の男子全員とセックスします

"I'm Kurama Azumi, the new transfer student. Before I graduate, I'll be having sex with all twenty boys in this class."

She is a young woman with an unfashionable hairstyle and gloomy atmosphere, so her assertiveness is surprising. The classroom falls silent as she introduces herself.

Within a few days, she has sunk her poisonous fangs into the homeroom teacher. Afterwards, she proceeds to rape each boy in class, as promised.