@Emmanuel Promise he went back in time to save humanity but he tries to clear the challenges on his own...he may have temporarily saved some people and kill bad guys and monsters on a whim here and there.... But he has neither formed a team or helped increase the powers of his allies...so all probable allies can die at any time again..that means he can't save humanity... He would 100% fail again .. that is the dumbest plan...the number of powerful/important people he has saved is less than 5 up till now... read the whole manhwa upto 59 chapters...it is going nowhere and it is boring ...nor there is any such great plan .. the summary of your comment is MC is op...so what?..most action manhwa MC is op...