From Wild Mage to Wizard King

Reincarnated.
Fortunately, he was reincarnated into a familiar game world, and the game plot and a lot of advanced knowledge in his head became his greatest wealth.
Unfortunately, not only did he sacrifice his parents at the beginning, but he was captured by the cultists as soon as he recovered his past life memories.
"According to the original plot, this broken ceremony only has two sacrifices?"
Looking at the fanatical cultists around him and the other two sacrifices that appeared in the game's opening CG, Roland, who was thrown into prison as the third sacrifice, fell into deep thought.
I came to this world not to call for peace on earth, but to call for war on earth.
Looking at this world where wisdom and ignorance, barbarism and civilization coexist, Roland, who came through, with his simple beliefs, threw himself into this great change that no one can stay out of, and stretched out his hand to try to strangle the throat of fate.
PS: There is only one female protagonist, no player.
Current progress: Wild Mage without faction - a semi-independent military force under the Locke Resistance - Chairman of the War Committee -?
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Elements: Lord, farming, adventure, development, war, and national salvation.