HUNTA-527 Thanks to my stepsister, 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! - Masturbate endlessly every day. - My sister-in-law is horrified when she sees this. - I can't sleep because I'm worried about when someone will touch me... - And to my horror, my sister-in-law rummaged through my underwear...

My reclusive brother-in-law, born after my parents remarried, is a sexual monster! - Seeing her brother-in-law masturbating every day and digging through her sister-in-law's underwear, the sister-in-law feels in danger of being attacked someday, so she gives her friends and teachers who come to her house drinks containing sleeping pills to make them sleep, and takes her place. - I give it to my brother-in-law and try to release his sexual desire! - He attacks a sleeping woman and continuously inserts himself into her, making her cum even when she sleeps or wakes up! - The sister-in-law is relieved, but one day she finds herself alone with her brother-in-law...