Nao Wakana, with her superb body that everyone envies, makes her first appearance in Premium! A sexually frustrated female teacher whose daily routine is to masturbate after school in an empty classroom, is spotted in the act and becomes known throughout the school as a slutty female teacher. Since then, Nao's beautiful body has been played with by students and colleagues. At the school festival, she gives a blowjob in a maid costume, is teased with lotion, and has orgasmic sex... She shouldn't have wanted to, but contrary to Kokoro, she soon feels it and climaxes!