Ryibyi was a large leaf covered demon  from Devilman Grimoire who served Sirene.


Identical to his original appearance, Ryibyi is a large slumped humanoid demon covered in large leaves, the only uncovers area's on his body being his mouth and eyes.

Powers and AbilitiesEdit

Unknown as he is killed before being able to use them, however they are presumably plant based.


Ryibyi alongside the pixie demon Irufuno attempted to capture Tsubasa Rainuma in a park at night. However Tsubasa, using her powers, manages to cause both Irufuno and Ryibyi to explode, Ryibyi leaving behind a pile of blood and Leaves. 

In a flashback, Rybyi is seen taking over a human body at a Black Sabbath held by Sirene.