Pyogimusa

Jin-Myung has lived his whole life looking up to his father, even though he was only a lowly footman. “This is an important job, the one who carries the flag and represent the country.” In this epic adventure, Jin-Myung starts with just a tattered pair of shoes, a staff, and great ambition. But starting from his lowly station, he will train to become the mighty "Flag-Bearing Warrior"! (Source: Kakao Webtoon, translated)