Gyaru Alice, dressed in a uniform, knows that stimulating the deep vaginal A-spot (porchia) by pressing through the rectum from the anal side allows for deeper and more intense pleasure than regular vaginal stimulation, reaching even the backside of the porchia. When her boyfriend and classmates refuse to try it with her, Alice turns to anal-inexperienced older men, inviting them to explore this new sensation together. Through Alice's experience, viewers will come to understand the profound depths of anal sex. This work thoroughly introduces the world of anal understanding and pleasure, guiding viewers step by step toward becoming true anal masters.