The creation of a villian from a hero who was discarded by the world. 'If the world doesn't want me, why should I want the world?'

An organisation called purge claims to make humans the overlord of all beings and conduct various tests eliminating weak people.

What is love? Everyone around me wants it. Yeah,even I do. But who can give it to me? Should I try being in relation? But what if they hurt me?

In a magical world where power was everything grey was a weak man. He was always bullied by his peers. One day, argos(the son of a sword master) accidentally killed a teacher at the magic academy. Argos framed hrey as the culprit and he was sought after by the kingdoms knights. While running to save his life, grey accidentally got into a cave where he met a dragon which changed his life.