HUNTA-710 Thanks to my stepsisters, I am able to do naughty things every day. My stepbrother, a hikikomori whose parents remarried and decided to live together, is a sexual monster! In order to protect my sister-in-law, my sister-in-law...

My stepbrother, a hikikomori whose parents remarried and decided to live together, is a sexual monster! So my sister-in-law is at the mercy of her brother-in-law to protect her sister-in-law! Ordered by her brother-in-law, her sister-in-law calls her friend home, puts sleeping pills in their drink, and gives it to her brother-in-law! However, the sister-in-law also falls into the hands of the brother-in-law, and the sisters bring each other's friends to sleep and give them to the brother-in-law. Then, on the orders of the brother-in-law, the sisters had a female friend.