TL;DR An uninspiring story, with an unoriginal protagonist, written by an uncreative writer
This is another super cliché generic fantasy anime, but the only difference it has from its peers is how bland and bad it is in comparison.
The MC is completely ooga booga braindead and his personality is basically super plain/barely non-existent. The only reason why this story even moves forward is because everyone and their mother are always sucking off MC-kun's d*ck for absolutely no reason. He was given godlike powers because the writer wanted it and despite having a completely broken ass skill, he's given even more broken skills. Anyone who's even slighty relevant to the story loves him unconditionally and then whenever "obstacles" appear, the MC just plows through them completely (and to be honest, if he had half a brain, he could just completely bypass ALL OF IT with his god level powers). The story is set up so that everything relevant in this world ends up going his way. Also, due to "plot" reasons he ends up kissing his friend a lot and doing other weird stuff with female characters - and the way he does it ends up just being super cringe
MC's power allows him to create ANY spell or permanent passive buff at his will. Will he give himself super strength or use his abilities in an interesting way? Well, using his power of generic-ness, the first spell he creates is Stone Bullet (it throws a rock at the opponent). Stone fcking bullet loooool, wtf man you could've created any basic level spell or passive and your first choice is to throw a rock. Man... And how does he upgrade his spell? Bigger Stone Bullet. I'm dying here at how uncreative this story can be.
His other power lets him have the answer to ANY question in the universe, the only downside is getting a headache when he uses it - he could do so much with his infinite information gathering, but of course, he has the mental age of a 5 year old child, so it ends up being a huge frustrating waste
Have you seen Kenja no Mago? Well, it's probably on the same level or worse. At least the misfit at the demon school had a kinda respectable protagonist, whilst Ore Dake Haireru is just a cringe power fantasy
