The Amami family consists of Hasaku-kun, his older sister Mao and younger sister Airi-chan. Their parents became founders in the establishment of an academy for cultivating love between students, but they died in an accident. Their aunt May took over the academy and forced older sister Mao to step down from her position as founder. Her plan was to turn the academy into an elite educational institution like Mechakon, where girls must learn the love craft and the ability to sell themselves to rich and wealthy men. In short, something like an academy for ideal brides... 

Unfortunately for Aunt May, all academy students must sign a charter, and since there are male students here, it is not possible. May forces her controlled girls to bully the boys and force them to leave the academy. In the end, almost all the boys left the academy, only our main hero Hassaku-kun remained. Aunt May tried everything to persuade the guy to break the contract and leave the academy, but it was all in vain, because the guy turned out to be a tough nut to crack. Sex and humiliation are the only things left in the arsenal of the poor and exhausted aunt...