The Unfortunate Boy's Reincarnation

A 16 years old student Kim hating his own life as he think that why was he so unlucky for being born into this miserable family. Always running away from his problems and hating the way he is time to time. His death was caused by a strange phenomenon that has not yet been discovered. Just before he was about to die, he thought that would his life be different if he didn't neglect everything. Being reincarnated as Levn Cromwell in a strange world that is full of a power called Fis. With regrets his past life retained, he promised himself to lead a promising life and correct his past life biggest mistake. Being blessed with the past knowledge as a student, Levn is seen as a genius. Soon, he finds himself studying various things about this strange world concept and slowly, healing himself from his past-life traumas.