Story of Kana Yuuki a cute teacher. In the beginning she look like a fierce teacher wear big and thick glasses. But when we  follow her closer she bring we to secret place that has one bed in it. Among the way she stand on the ladder and look backward to us  that make our metabolism increasing.
Back to the bed that she is in and then slowly take her teacher uniform off and her glasses too she look different from the beginning oh god! she is cute teacher ever.