The protagonist (a virgin boy) decided to join the Patience Club just because he wished to get closer to a girl he secretly admires.
The test to enter the club was set on Saturday. The school was vacant.
He opened the door of the club activity room to find the girl. She is actually the boss of the club.
The exam turns out to be a naughty one; if he can hold back the ejaculation until the end, he is accepted.
Can he beat off various erotic attacks from her and enter the club…?