The younger sister of the sisters had been taking care of her frail father, but due to a large amount of debt, she offered her own body to loan sharks. The filial daughter was impaled to the root for her father's sake and writhed in agony, enduring pleasure as her body responded and reached ecstasy. Seeing her sister pitiful, the elder sister also willingly submitted herself to be violated, but her flesh succumbed to pleasure, being enjoyed by men one after another in a sister sandwich, ultimately becoming sisters used for sexual release.
