Kurutta Kyoutou: Danzai no Gakuen

At an educational institution in Tokyo, the entire teaching staff is depicted as being driven by obsessive sexual impulses. Following the arrival of a new principal, even the previously reserved instructors collectively yielded to his corrupting influence. The principal remarked that the educators had themselves become rigidly set in the school's depraved traditions. The establishment has gained notoriety as a center dedicated to acts of debauchery and unchecked lust.