Board Thread:General Discussion/@comment-24393519-20150810060426

Oryu (Golden Dragon)
It seems more than coincidental that Uryu and Ōryū both involve the quintessence.

The Yellow Dragon (traditional Chinese: 黃龍; simplified Chinese: 黄龙; pinyin: huáng lóng; Cantonese Yale: wong4 lung4; Japanese: Kōryū or Ōryū; Korean: Hwang-Ryong; Vietnamese: Hoàng Long) is a creature in Chinese mythology. It is also called the hornless dragon (黄竜).

Other uses In East Asian culture, there is sometimes a fifth Guardian Beast of the Si Xiang. This deity is the guardian of the center and it represents the element earth, the Chinese quintessence, as well as the changing of the seasons.

The yellow dragon does not appear in Japanese mythology: the fifth element in the Japanese elemental system is Void, so there cannot be an animal representing it. Because of this, the yellow dragon is often forgotten. However, some consider the Ouryu (Ōryū, yellow dragon) as the Japanese counterpart of the dragon since they share some similarities.

https://en.wikipedia.org/wiki/Yellow_Dragon  