And MC is supposed to be different from his Canon counterpart and I need the proper chapter progression in order to fully develop a full-on depth on a character's actions. Plus, I will consider this criticism since it will only just motivate me to do better.

And I'm not experienced enough to consider the realistic approach into a character's next action.

I get it ... but you make obvious plot holes. You mentioned that mc's mother was created by the demon king that's why she is so powerful, and I created her to be able to have her offspring. and the next moment you show us a thought of her saying that I wish she had met someone like meliodas ... ??? Do you notice the error in that comment, I mean .. how inconsistent is this?

She's binded to him in a way that forces her to love the Demon King since she was created to be his wife and queen but she never got any sense of love returned to her except for Meliodas(in a familial sense) and she wants to find a way to break that bind from the Demon King to fully be free from his influence.

but at that point ur just restricting Mc power, he is 5+ year old in this novel and is weaker than the newborn manga meliodas and you separate demon marks and his darkness on the level you just made it like super Saiyan modes, Naw its even worse than that, its another thing to hold him back, he could have his full demon mode any time cuz its just pulling out his "true power"

Why do you guys think he was born powerful. The way I'm doing this in the story is to build him up from scratch to make him gain power through effort and determination since I don't believe that making him powerful from the start is a good idea since there's already too many fanfics that include the MC gaining their power with no effort whatsoever because they were born that way.

Also I believe that you are currently reading the first few chapters I typed out on my phone and everything else after those chapters gets better.

I thought so too, but also meliodas was born in a league above the other demons, the other ones are born from demon seed like hatchlings and can evolve but high ranking demons either are born with 7 hearts or just et strong enough to become humanoid and gain hearts since chaos was trying to create beings human and the other races are basically prototypes