Pioneer Lords: Starting with the Witcher

I traveled to the bright Middle Ages, got the skin of a noble young master, woke up from the cold carriage, and went to the frontier of the kingdom to pioneer. Nobles, manors, religious orders, griffins, water ghosts, and fire dragons. After getting familiar with this world, I saw the lord's contract bending the backbone of the serfs, the monks burning newly annotated scriptures, competing for the power to translate the oracle, the knight's plate armor outside the church reflecting the midday sun, and the citizens listening to the devil's whisper during mass... I gathered refugees, developed early industries, and gave birth to new classes. I repaired buildings and enacted laws. A giant town was built on the border of the kingdom, and the people's living standards improved as expected. But why do they call me a devil? Okay, okay, evil spirits, right? I want to show you what it means to have people's hearts turn against you. Contains elements: lord farming, aristocracy, witchers, the late Middle Ages, the Reformation, gods, proxy wars. PS: No system, not Japanese-style Western fantasy.