Devil of Orario

Cliche reincarnated into the danmachi world with previous life memories but the guy reincarnated did not read the danmachi book.(not gonna make the mc extra op in 2 months , there will be proper logic according to the rules already established in the danmachi world, not like level 5 in 8 months).
Story follows the mc as he goes against the disabilities he is born with his previous life memories and becomes the Devil of Orario.
But with exploration of the world filled with mana, why does magic work the way it does, what is divinity, this is made possible by the protag witnessing and experimenting with faint traces of mana in his home world.
I will try to add suffering in the story to the best of my ability as i like it that way. Theire mey be some some typos but will try to keep it to a minimum.