Solo Leveling

A world in which several portals have mysteriously opened all across the globe, leading hunters to "dungeons" which can vary in rank. From E rank being the safest of dungeons, to S rank being the most dangerous, the ranks go in the following order; E, D, C, B, A, S. "Hunters" are people who, since the mysterious appearance of these portals, have ascended and unlocked new-found strength and magic within themselves, allowing them to surpass regular people in combat. Hunters follow the same ranking system that dungeons do, most Hunters invading only the dungeons that correspond to their rank. It is said that the lucky people who awaken with their new found power, cannot reawaken, and are therefore stuck with the rank they receive after ascending, though rare cases of second awakenings are possible.