I just can't read this any more. I give it a 4/10 and it's probably a lot better than it deserves.
The main character is stupid, he doesn't use his powers to their fullest potential, even though they're broken.
Like, bro, you have the ability to customize everything... and you fucking go on missions with danger with ZERO PREPARATION?!
He doesn't use his powers to their limit, only trying hard when a random dangerous situation arises and he suddenly can bullshit his way out of it.
I expected something from this manga, but let alone the lackluster plot, there is also zero tension.
Edit: Oh, forgot to write this, but this manga also suffers from something I like to call, Center of the World Syndrome.
It's a syndrome where the main character will have certain positions that force him to be the center of attention for absolutely no fucking reason.
Like making a random beggar into a commander of a small army simply because that beggar has some special powers. The beggar may know nothing about how to manage the army, or how to command, or how to speak... But he got some super awesome power, doesn't he?
So fucking stupid...