[DL Mate (Izuminoaru)] I Received a Notebook That Lets Me Rewrite the School Rules [Full Color] {doujin-moe.us}

A student gets his hands on a notebook that lets him rewrite the school rules one line at a time, and the academy quickly stops being a place for lessons. What starts as one flustered girl in a frilly apron getting 'questioned' mid-class spirals into mandatory poolside group training, while the busty teacher and her pierced nipples are passed around by the headmaster and staff until she's begging for more. Soon the entire class of curvy, ahegao-faced students is cheering him on to knock up their blindfolded, collared classmate — because breeding her is simply one of the new school rules.