I Became A Childhood Friend Of A Mid Level Boss

Do Kyunwoo is the black sheep of his renowned swordsman family He cannot even catch a rabbit on his own On his first day of fifth grade he meets a tranfer student and recalls his past life
He had reincarnated into the world of a game he used to play called Brave Hearts He was already frustrated that he had reincarnated as a loser but on top of that the transfer student is an intermediatemidtier boss who will destroy the world
Why are you being so nice to me
Because I want to be friends with you
Do Kyunwoos plan is to become friends with the transfer student in order to prevent the end of the world
In order to survive in this new world and to reach an ending he desires
He becomes best friends with the mid level boss