so the MC has this all knowing power that let him understand the strenght and weakness of certain items or skill. At the brining he uses it very well but as the story progress it seem seem like the MC is so dumb in using/understanding how to apply this knowledge. He knows everything about the item or skill but yet some how messes up using it in one way or another but still looks cool doing it. At first it fine but the author does that so much now it's just making MC look plain out dumb. There are other way to make him look cool beside making him mess up unintiinally. And it's always the same... oops I'm sorry I didn't mean to but hey let me help you with something else to even it out. How about the MC not mess up so often since he has this all knowing power.
He keeps making pill at the most incovience place knowing he would probably cause trouble which he does but because he the main character somehow it works out. Another thing is the author keep making him say the enemy has gone to far in bullying and trying to kill him but he's the biggest bully I met in the novel not to mention sometime he would try to kill the enemy a moment ago but now they trying to kill him and he would still say the same phrase.
So after 500 or so chapter the harem that I said was good became pure crap. Literally girls are force into his harem and he's to stupid to say no and they get injected into his harem with no big romance or story behind it beside the athour wanting him to have more lovers. It was suppose to be a gem in the harem pile of crap writing but turn out it just part of the pile of crap that shines a bit more than the rest of the crap. 3.5 out of 5 now.