The pure idol AV actress, ' Mika Osawa', makes her first appearance in Groque! At school, she serves as the class representative, has excellent grades, and is a role model for all the students. At home, she is a filial daughter who spares no effort in helping with the housework. However, her true nature is that of a 'slutty girl who loves old men and thinks about erotic things all day long.' At home, she indulges in perverted masturbation, and outside, she is gang-raped by manual laborers, tied up and left in training play by a compensated dating old man, and raped over and over by a delivery man. Don't miss the intense eroticism of Mika-chan and the old man!