A beautiful young girl who never defied her parents enters the AV industry of her own volition. Her twisted fantasies, sealed away in a box for 21 years, erupt, leading to a tearful and joyful masochistic climax from her long-awaited masochistic play. (Shiori Mamiya, MVSD-676)

Mom and Dad, I am so happy right now! Back in my hometown, I was raised with strict discipline; even dating and sex were forbidden, considered "bad things." There was no interaction with the opposite sex at my all-girls school. One day, I stumbled upon an SM book in a secondhand bookstore, which shocked and excited me. I secretly indulged in SM fantasies and masturbated… After graduating high school, at my parents' urging, I went to Beijing and entered a nursing university. Every day was filled with school, classes, and returning home for dinner at 7 PM curfew, answering my parents' calls to confirm I was home. One day, at university, I was approached by a guy sitting next to me. Having never spoken properly to a boy before, I was confused yet attracted to him. Every night, I masturbated in bed, indulging in lewd fantasies of sex, SM play, and perverse play with him. Experiencing unprecedented stimulation and pleasure, I began to realize my masochistic tendencies. Finally, starting with a rebellion against my parents, my repressed masochistic desires exploded. I started frequenting SM bars, indulging in the world of bondage and SM… Miss Box, who never defied her parents, dropped out of school with her own will and determined to debut in the AV industry! The savage masochism lurking within the innocent 21-year-old girl awakens! Her first-ever "swallowing semen" and "cumshot"! Bondage! Choking! Slaps to the abdomen! Buttock slaps! Face slaps! Deep throat! A storm of Hard Play! All out! Ruthlessly ravaging me with love! More! More! Violate me like trash! Exposure! Exposure to the extreme, let it get even crazier!