H-cup masochist Nanao becomes an obedient pet who follows every command on a loving but merciless walk through Shinjuku. Wearing a collar and no bra, she parades her bouncing tits and visible nipples past staring strangers, wets herself in a parking lot, and cums in the street from a remote vibrator, leaving a stain on her panties. See-through lingerie is exposed beneath her coat before she is toyed with behind a car, stripped and abandoned in a building’s emergency stairwell, and forced into teary deep throat until drool pours down her flushed face. Choking, hard sex, spanking, swallowing a huge load, and rough fingering push this Hachiko-level loyal pet into increasingly filthy moans.