Start with Orphans

(The whole part is about daily life in the city, and the latter part is about the underworld.) I grew up in an orphanage. At the age of 16, he left the orphanage and went out into society to make a living independently. He was abducted by a hotel owner and sold to Country M and worked as a mercenary for 6 years. Six years later, country M was liberated and I was sent back to my homeland by the army. It was discovered that the former orphanage no longer existed. The director of the orphanage and two friends who had grown up together died of unknown causes many years ago. In order to help them find out the truth about the death and seek justice, I wandered around the small streets in the city. While making a living, he is investigating the truth behind the dean's death. By mistake, he found his mother who was a gang boss. On the road to revenge and bound by identity, he had no choice but to get involved in a gang fight...