He traveled to a different world and became the son of a master alchemist. He had a broken talent for alchemy, but he was ostracized in this aristocratic world.
His father wanted to recruit a viscount for himself to participate in the party struggle, but in the end he refused to settle down. He was also implicated, and the fertile fiefdom previously rewarded was replaced by the border of exile.
Exiled to the frontier... Developing alchemy... Until
"Why are your soldiers all blue, holding two swords in their hands, only attacking but not defending, and shouting 'for the justice in their hearts'!? Just kill my army!?"
"It's just alchemy!"
"Why are you holding a Gatling with blue fire in your hand!?"
"It's just alchemy!"
When the enemy reaches your stronghold: "Why does your castle stand up with its legs spread!?"
"It's just alchemy!"
When the enemy defeated all the armies and faced despair: "Why are all your armies gone! But you took out a magic stick!?"
"It's just alchemy!"
When the enemy besieges and exhausts all the power of faith: "Why can you still move even though the power of faith is exhausted!?"
"I am the God of Alchemy! As long as there is energy and matter!"
"I can change if I want to!"