To repay her brother's debt, the sister is kidnapped and held captive in the home of an insatiable yakuza, forced into relentless sexual servitude. For ten days, she lives as my personal woman, enduring an unending stream of pleasure and degradation. Whenever I desire, she must immediately present her ass and accept my cock, forced to take my deep penetration and cum injection on the spot. Her lustful body remains perpetually aroused, never fully recovering. Each time my cock twists inside her, she displays her lewd, helpless form, evoking both arousal and excitement. Drenched in cum day after day, this is eroticism at its most extreme.