巨乳な母騎士寝取り孕ませ～背徳交尾漬けでふしだらなメス穴騎士に成り下がるまで～

As the demonic presence across land grows things appear dire, until the legendary knight Selena Chastity and her band of demon-slaying warriors appear to turn the tides! The MILF-y knight herself appears in your castle to inform you that you and your armies have been summoned to fight in this battle, the battle that will also coincidentally be Selena's daughter, Layla's first real deployment.

Wouldn't you know it, a classic case of nepotism or just beginner's bad luck under Layla's command half of the troops under her command lost their lives in the ensuing battle... Before Selena allows any punishment to befall her poor daughter she offers herself to take ANY punishment you deem fit.