Bound to a Quest System, Starting with a Disabled Prince

[System + Missions + Funny Everyday Life + Wild Imagination] My grandparents divorced, my family fell apart, and my parents each started new families. A wooden cabin and a few plots of land became my own lonely yet cozy little home. All because I ate a few frogs, I was forced to bind myself to the Frog System and sign a 99+1 agreement. My very first mission turned me into a paralyzed prince, and I was told to ascend the throne. Sure enough, you only get this kind of luck by stepping in dog shit. At least a disabled prince has a princess consort. What...? That has nothing to do with me. Then there are two concubines. What...? Still nothing to do with me. Surely the child is mine, though. Hmm... at least we share blood, but that's just family ties. What's the point of playing this game? It's a disaster from the start. Luckily, the System is at least a little humane: I have one daughter who's actually mine. But then... is she calling me Dad, or am I supposed to call her Dad?