The Pain You Never Know

Date Makoto was an average man who had a rough childhood. He used to have everything, but one day all of that was gone. Makoto risked his life to maintain it, until the girl he loved broke him and his friends turned their backs on him, leaving him alone and questioning his life. After that, it drafted him into the military to fight in a faraway land. However, Makoto got arrested and sent to the enemy prison, interrogating, torturing any human who cannot survive on that method… After 10 years of prison, they finally released him to the enemy prison camp, and retired in service. Now he was going home and spent his time settling and merging in the civil society, as he was settled his peaceful life there is a call coming from his past connections, now his survived the carnage and worst-case scenarios in his life, how about the second round?