The Tachibana Yuu of the fool Schoolgirl answers the problem of the arithmetic by perception. Of course be Batsu game plunge ... in a non-correct answer. At first be blamed in Vibrator and Egg Vibrator at two places of same time…Be i cchaimashita for the first sense cutely. Be attacked by the various physique intensely with wearing Uniform after So…Finally, shoot it, and a chest is de finish!