Desperate for quick cash, Wujeong Cheon takes a high-paying temporary gig aboard a luxury cruise ship. When high-profile passenger Sa Gongjun offers to hire him on the spot for a personal job, Wujeong thinks his financial troubles are solved. But a fatal misunderstanding reveals Gongjun’s true intention: he wasn’t looking for a translator, but complete, humiliating physical submission. Trapped at sea with a ruthless man who demands his total surrender, Wujeong’s life quickly veers into uncharted waters. As coercion blurs the line between resentment and desire, he finds himself ensnared in a dangerous bittersweet addiction.