The Journey of the Evoker/Gunslinger

Vinod used to be an ordinary worker in earth who is bored with his life. One day he lost his life in the hands of goons who were trying to extort him of money. His soul transmigrated into another world "Terrion" into the body of Ash Randell of Earl Randell's house in Yellandria kingdom. He is the fourth son and the weakest in the family with lowest magic power. The three eldest brothers looked down on him and used to harass him. After 2 years of transmigration when he was 7 years old he heard the voice he was waiting for "Does the host wish to bind with the adventure cum development system?"