The naive students who come to the night duty room to play are being secretly teased by their teacher inside the kotatsu!

A hidden popular spot at school: the night duty room! You can eat tea and sweets, and there is a kotatsu (kotatsu) to keep you warm in the winter! However, in the night shift room, the naive students were being played with their naive cracks from the side of their bloomers and panties by their lewd teacher's thick fingers! At first he said, "It's ticklish!" and laughed innocently, but after that, the naive student became addicted to the pleasure of the crack and escalated in his pursuit of pleasure!