The New Singularity(Male reader x Magi)

y/n is a guy who had a rough childhood, often having to survive in battlefields, as well as making his decisions and accomplishments alone, to the point that he ended up becoming a Metal Vessel user, but a more different one, having not one, but seven Metal Vessels, surpassing even Sinbad, the king of Sindria, one day, while y/n walks, he ends up spotting a yellow haired guy entering a dungeon along a blue haired kid, and secretly enters it with them out of curiosity, what fate has for them, can only be revealed with time.