Synopsis: Reincarnated as the Grand Duke's Third Son

He perished as a mercenary, unable to elevate his status due to his lowly lineage. Yet, upon opening his eyes again, he discovered that he was now the son of an Archduke. With the family, position, and abilities he had always longed for finally within his grasp, how high could he ascend? A previous mercenary captain transformed into the third son of an Archduke—his daring and unorthodox noble existence is about to commence.