At Sadi University's Nursing School, students themselves become naked test subjects in practical training, which has led to a high pass rate for the national exam. The "sense of shame" burns the lessons into their brains. They are taught how to clean the insides of the labia majora and labia minora, and are taught that smegma accumulates on the glans. The instructors believe that students who aim to save lives have no lewd Kokoro.