Girls' schools are popular because you can find a good match and get married after graduation. However, it was a school where teachers trained 'schoolgirl sex pets'. Tragedy began when Makoto entered the school... Makoto's ○○ body was forcibly developed... She is raped every day and forced to suck the penis deep into her throat... During her three years of school life, the girl falls into the role of a sex toy that seeks men!