Gal-Bitch Shounen no Insei  

ギャルビッチ少年の淫性

Haru Awamichi, a pupil at an all boys institution, enjoys dressing up as a gyaru. Despite this behavior going against school regulations, none of the faculty seem to object, much to the surprise of gym teacher Inukai. After informing Haru that he would no longer tolerate such conduct, Inukai made his way to the principal's office. However, instead of receiving support, he was drugged and found himself tied up on a bed when he awoke. He was confronted by Haru, who revealed that the only method to stop him from cross-dressing would be through an intimate "game." With no other recourse available, Inukai agreed, and the game commenced.