It's good but the start is too much of inferiority complex and doesn't give enough reason MC can't change to mage despite not clearly have class system.It would be better if MC try to change not after regret
And bias of meta is too much it doesn't make sense

So yeah, just to be clear, the summary is totally useless. Is it wrong? Uhh... it'd be like summarizing LOTR as 'a couple of short guys deliver a ring'.

So basically, the MC is a very low rank raider, basically a useless fodder frontliner. He is this way, despite being RIDICULOUSLY talented at magic, because back when he started, magic users were thought to be totally useless, and the only way to succeed was thought to be a warrior. Anyway, he finds a Mythic Item, which in this case is possibly Odin's eye (there's a bunch of Norse Mythology references). Upon reciving the item, time shenanigans ensue and he goes back in time, now with the ability to deconstruct and learn magic visually. Basically he has copy+paste powers!

So it's a time-regressor story, with the MC having OP potential and now the tools to make use of it, as well as TWO types of Systems (his seems to be a renegade system? that perhaps the gods that lost promoted? not entirely sure).

So yeah, there's a better summary. I'd be interesting in reading the original webnovel too, so in that case, the webtoon does it's job really well! Great art (and damn there's some really hot characters! >.> )