As a RPG game, upgrade system is a key point to make users competitive & active when playing game.
There are 2 upgrade systems in AETHR WORLD:
1. Level Up Characters have a wide range of level can be upgraded - Higher Level, Higher Performace 2. Awaken Characters will start from Tier 1, 1-star, and then can be awaken up to 7-stars. Higher Tier, Higher Advantages