The Crescent Order is a mysterious organization located in Japan that, for unknown reasons, protected the Lotus, an elixir that could counter the effects of the Lazarus Pit.


Sometime after her son Akio's death and losing contact with Oliver Queen and her husband Maseo, Tatsu Yamashiro became a member of the Crescent Order.

In early 2016, Nyssa al Ghul approached Tatsu for the Lotus. After a brief duel, Tatsu diplomatically agreed upon learning Oliver needed the elixir.[1] The Lotus was then used on Thea Queen to save her life.[2] Due to her actions of giving away the elixir, Tatsu was forced to leave the Crescent Order and returned to Hong Kong.[3]

Known members

Former members



Season 4

Season 8


  1. "Unchained"
  2. "Sins of the Father"
  3. "Welcome to Hong Kong"
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