[Zettaizetumei] Keiyaku no Ana!? Mamono Tsukai no Junan [DiSCO Scans]

A monster girl with a powerful, curvaceous physique finds herself overwhelmed by her own physical desires, despite the strict terms of a contract that governs her relationship with her master. As her body reacts to his touch, the tension between her duty and her primal urges reaches a breaking point. What begins as a struggle for control turns into an intense encounter where the master takes full advantage of her vulnerability, leading to an inevitable and fertile conclusion.