Just the other day, I got married to a man who has a child from a previous marriage. It seems that it will take some time for me to get along with my stepdaughter, Miu-chan, because of her age. But we were supposed to be living happily as a family... Then, one day, Miu-chan invited her male friends over from school and started instructing them to assault me! I desperately called out to Miu-chan for help, but she just watched me being assaulted and "smiled in contempt." And from that day on, my days of being gang-raped by my daughter's classmates began...