Shizuku Takamiya is usually a serious and good student but she is actually a huge pervert. She usually looks at her classmates' crotches and masturbates when she gets home... Among them, there is one crotch that she is most interested in. Tanaka-kun's crotch is always wet... Shizuku couldn't ask him why it was wet but... (͠≖ ͜ʖ͠≖)