Hello. I'm here to help you avoid wasting your time. The premise of this manhwa is that some loser in his late 20s regrets not playing football as a child, so naturally an all powerful demon appears and not only lets him regress to his childhood but also gives him the ability to copy the talents of other football players. Now you might think to yourself, "Okay. That sounds like a good premise for a football story." or you would if you didn't see the score I already gave. This story is the most blatant, self-insert cringe inducing, fanfiction tier sports comic I have had the displeasureof reading.
The cycle of the story goes like this: The MC comes across a talented kid footballer(sometimes they're a knockoff version of a real player), the MC copies their talent and then stunts on some other kids, he does this a few times until he runs into a famous adult football player whose talent he copies, he goes back and stunts on some more kids. A crucial match or tournament comes up, the author expects us to believe that somebody who has copied the talents of prime Benzema and Eden Hazard would lose to children. He doesn't.
Rinse and repeat with the MC gathering fame and recognition while he cheats his way to the top. Also those magic demon powers? They can copy any kind of talent. The MC just decided to pull an "I don't want to cure cancer, I want to play football".
Horrible stuff, give it a pass.