The Dragon Lords (or Laiwang as according to the Khunlei tongue) are a collective term for the four portions of the God Xurhuan Zhi / Elysia's being. Each supervise one of the Pillars:

-Tsenan Lai / Spring (East, Spring's Domain)

-Ulong Lai / Summer (South, Summer's Domain)

-Tsagai Lai / Autumn (West, Autumn's Domain)

-Khei Lai / Winter (North, Winter's Domain)

'Dragon Lords' are a Gui Mu name: deriding the Luuwang as abomination-kings.