A man accidentally time-traveled and was mistaken for the noble Felix Lynn. He faced betrayal from his intended bride and was caught in ridicule and crises. However, using his modern knowledge, he impressed everyone in a hunting competition and repeatedly proved his worth during crises involving Goryeo and the Fusang Navy, gaining the Empress’s favor. Yet, a central controversy erupted over dealing with Fusang, leading to him being framed for treason and even proposed for execution. Just as the Fusang Navy approached and tensions mounted, Felix seemed prepared, requesting to fire, demonstrating his ability to fight against the enemy.
