Hong-jin, who is described as a "dog" gambler, owes money to a local crime boss and runs away from home, joining the Republic of Korea Armed Forces, so his creditors can't catch up with him.
After enlisting in the military, Hong-jin found value in his purposeful service in the army, which helped him break his bad habits and transform him into a completely new person, strong and dedicated. Later, he climbed the career ladder and joined the 13th Special Forces Brigade 