A man struggles to pay his brother's medical fees. His roommate covers the cost, but the man insists on repaying the debt quickly. He demands to join his roommate's lucrative 'testing' job. The roommate warns him, asking if he'd even kneel and call him 'Master'. The man defiantly agrees, sealing a contract. The roommate then reveals the test involves 'toys' and personal participation, and the man reluctantly accepts the terms, beginning a highly charged arrangement.