19-year-old slender black-haired beauty, Yayoi. A shy, well-bred girl who dutifully played the role of a girlfriend, it took quite some effort to seduce her into experiencing sex while cosplaying in a uniform. When we first met, Yayoi could never have imagined being filmed, let alone doing gonzo-style shoots. But now, with her tsundere side emerging, both her promise-keeping nature and her erotic displays are equally captivating. On this day, after a date, we moved to a love hotel. When I tried to start filming as promised, she acted aloof, saying "You don't have to film," but by placing the camera farther away, I continued shooting—her feigned resistance just another adorable gesture. Next, I had her change into the promised cosplay. Her slender body and smooth back peeking through her beautiful long hair made me want to hold her tight. She protests, "No~ stop it~," yet melts into sweet, affectionate kisses. Once changed, the pure, sheltered beauty stands before me—overflowing with unfairly cute charm. To enjoy her gorgeous legs stretching from her skirt, I spread her into a wide M-shaped split. As a Heisei-era beauty, she's the perfect M. However, due to her refined upbringing, she guards her panties with her hands. Changing tactics, I shift her into a seiza sitting position. She whimpers, "No~ it's embarrassing…," but isn't it even more embarrassing how tightly her panties press into her slit? Forcing her legs wide open, she buries her face in her hands, mortified by this unladylike pose—perfect. On all fours, I lift her skirt, exposing half her ass for handjobs. She won't show her face, but her cute anus twitches as she wets her tongue's entrance, drooling with arousal. Her naughty side grows bolder—between her "No~ it's embarrassing…" protests, lewd moans begin to slip out. Hand-fucking her in an M-shape, she shuts her eyes tightly, trembling with intense sensation. Seizing the moment, I slightly part her chest to reveal her modest, slender breasts and erotic nipples. Just as I lean in to lick, Yayoi grabs my wrist and adjusts the angle of my fingers, using my hand to finger herself in a self-pleasing rhythm. This proper lady—so filthy hot? Unbearable. I make her take my cock into her refined mouth, sucking it carefully until it's rock hard. Then, I plunge deep into her juicy, dripping wet pussy—so soaked it drenches my wrist. Every thrust makes her feel intensely, her gap between daily innocence and bedroom lust incredibly erotic. She starts moving on her own, grinding hard—such a cute Yayoi, even the way she falls asleep without showering afterward.