Protagonist Majime Masato is a very ordinary erotic second grader that frequents Hitotsu Sakura school. (Majime-kun is famous as shameless and perverted from girls.)

One day from the black cat that helped "Smartphone of erotic love" having received, he have raised the level by job change from a mere erotic student to perverted student. At Hitotsu Sakura school is the breast deviation value for the whole country top 3, it is the girl heaven.

The woman bath at three seconds "Ladies bath door anywhere" application program. When the girl is patted with the penis cursor, it becomes erotic "Penis caressing" application program. Molester success rate 100% "Molester now" application program.

To a cool childhood friend, to deepen ero community, a shameless application program is started. To a serious nagging discipline committee, the sex education application program is started.

Can Majime Masato really conquer Hitotsu Sakura school?