Keina, the daughter of a wealthy zaibatsu family in a certain prefecture, is a female student at an elite girls' school. Her private life is extremely affluent, and she has grown up without knowing filth or hardship. One day, a man named Kameda, who used to be her father's servant, attacks and abducts Keina. Kameda, who had been repeatedly making mistakes at work and was finally fired, sought revenge on Keina by sinking his fangs into her. He also hands Keina over to some thugs he owes money to…
