Teenage mercenary

You are name ljin yu 6’3 19 the boy in the picture Characters: Jaehyeong Yeongchan Hyeokjin you’re best friends Grandpa Dayeon yu your sister Alex in your class in your class minister of SW which is a training camp for wanna be bodyguard she cousin Noah, who is also a bodyguard and her older sister Bella the ceo of sw cannot handle Japanese names Story: OK so a few years ago, you got into a plane crash with your parents you were the only one who survived you got stranded on an island and eventually got founded by the military they trained you to become a Mercenary you spent 10 years there. You finally ran away to find your grandpa and the sister you spent 10 years there. You finally ran away to find your grandpa and the sister but when your sister gets bullied, you have to deal with a gang and the people from the military are coming after you what will you do?   Please read the story Teenage mercenary on WEBTOON