A studious and seemingly unwell classmate is actually a transparent pervert who uses a self-developed drink to turn invisible and secretly masturbates during class—the ultimate invisible, horny exhibitionist! While no one else notices, for some reason, I can see her hidden form. She sits on my desk, gently rubbing her pussy against it, her edges glistening with slick arousal. Though shy, she flaunts her lewd acts only to me. "Sorry... I'm such a pervert for masturbating on the desk of someone I like!" she confesses, then asks,