The day her ordinary life changed forever. Without anyone noticing, her world was already shifting. 23-year-old Riko, a mentally fragile, yamamba-style girl. Her new boyfriend is your typical airhead guy, yet for some reason, being with him feels comforting, and genuine feelings begin to grow. She wants to be honest and open with him, but the words won't come out. She longs to be affectionate, but can't express it. Her silent prayer: "God, please give me the ability to be sincere." Desperate to reconcile with him, her heart aches and trembles. And somehow, that plea reaches somewhere it shouldn't. A dark force lurking within daily life reaches out and abducts her. Without anyone realizing, her existence is swallowed into seven days of confinement. Her normal life is abruptly shattered by an unforeseen twist—ripped away from reality by unseen hands. What awaits her is a series of extreme, unimaginable experiences: aphrodisiac-fueled sex, unconscious rape, and relentless confinement rape. She is pulled into a pitch-black world hidden beneath the surface of everyday life. What lies ahead? Her heart wavers in fear and confusion. But these seven days will become the turning point that forever alters the course of her life.