緑仙(通常) 緑仙(私服)
The original default costume of [[Nijisanji]]'s [[Ryuushen]]. They used this from June 2018 to April 2019 when they replaced it with their [[Ryuushen (3rd costume)|current default]]. 

h4. Appearance

* !post #6620507
ryuushen (1st costume)