The Foreseen Chance

It is about a young teenager who suffered a lot of negative things happening in his life. He felt like he doesn't exist, even his family is like not treating him properly. When he died, he saw an unseen person trying to give him a second chance to live, but in exchange, he needs to overcome a life-threatening situation where he will get killed by someone, more like an assassin trying to kill him at the same age he died. What will happen in his second life?
This is just fanfiction with a romance theme. Swear words are minimized, and no adult things are added. This is just the beginning of the story