I Accidentally Found an Overpowered System

Thomas, who was the strongest commander from a kingdom.
nation\'s feared him because they could not defeat just a single man with there whole armies.
but it didn\'t last long, because Thomas who decided to retire and wanted to live a normal life with his family.
which the king of his kingdom didn\'t liked.
he offered him everything but Thomas refused.
he was at an old age too.
king decided to end Thomas life, which he did.
Thomas died by a poisonous drink.
but he was reincarnated into a new world.
he had a second chance to live a normal life.
but... it doesnt seems like it will also stay the same for Thomas.

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