HARU is a cross-dressing boy with a refreshing smile and a pure, innocent charm. Despite his shy demeanor, he has a naughty side—he's the type to pleasure himself by stimulating his own anus. Yet beneath that boldness lies humility, as he confesses, "It's embarrassing... but I'm still a virgin." With smooth insertion into a vaginal pressure gauge and even a banana, he gradually relaxes through silent kissing and masturbation scenes, building up the courage for his first real penetration. As excitement and joy overcome his anxiety, what kind of experience will HARU's anal virginity loss become?