Having failed at job hunting and relying on relatives in the countryside, the teacher is now working as a private tutor. His student, Saya, behaves like a respectable and refined woman, but... when she's having private lessons with the teacher, she can't control her carnal desires, opens her own underwear, and begs for a reward from him... He thoroughly teaches her about sex to the fullest extent of his desires as her body becomes aroused! Tonight, once again, her moans will echo...!