Su Xiao stood on a giant rock by the coast, the setting sun sank in the west, and the sea water slapped against the rock, splashing high.
After Katakuri's retreat, Su Xiao met the requirements for the third ring of his promotion/main task, successfully activating the fourth ring, which is the final stage of the promotion/main task. Once this task is completed, he can advance to a fourth-tier Hunter.
Advancing in tier does not directly increase strength, but allows him to experience higher-tier worlds. The more difficult the world, the richer the rewards, and this is where fourth-tier Contractors differ from third-tier Contractors.
