Hero

The accepted term for people who can (and have) entered the Labyrinth among the people of China is Hero, or rather, Immortal Hero (xianxia).

The Chinese differentiate between simple Heroes for those who have only reached Tier 3, and Greater Heroes, for those who have advanced beyond Tier 3, as the requirements for higher Tiers become more intricate.

The title of Greatest Heroes is reserved for those having achieved the highest tier... so far.