A full-dive MMORPG. The concept is to delve into dungeons, search for treasure, and become stronger; there is no level system.
Each time you enter a dungeon, the terrain, enemies, and chest contents change, ensuring you never see the same sight twice. The treasures and skills you obtain are divided into eight tiers of rarity, with rarer items holding more powerful effects.
Skills grow through synthesis and repeated use, and as they accumulate, your race and class themselves can evolve. There is no single correct way to develop your character; the theme is to forge your own unique path of growth.