Solo Leveling, Vol. 3 (novel)

When Jinwoo gets his rank reevaluated, the results are even better than hecould have dreamed of...but more importantly, a chance to heal his motherfrom her strange illness falls into his lap. In order to find the cure, hemust make his way further into the Demon's Castle--and now thatthere's finally hope at the end of the tunnel, nothing can get in hisway.