Former Captain and Leader of the Dark Ones
Garnyu is first seen during the blanks first appearance, It is Kon who see him while in the body of Ichigo and only catches a glimpse of the man in green armour, He tells Ichigo while in a meeting with the tenth captain of the soul society what he saw. This is where we are told about him briefly, they are a clan banished from the soul society to the Valley Of Shadows where the blanks (Blanks are lost souls).
We do not see Garnyu again until the Dark Ones, This is what their clan is now calling themselves reappear to find the Memory Rosary (Senna). This is part of his plan to draw the Soul Society and the real world into each other, It will event in one of those worlds being destroyed and the Valley of the shadows will take its place, Senna is needed to allow this plan to work she is the key. After defeating Ichigo with one blow, he makes his escape along with the rest of the dark ones back to the valley of shadows.
Bleach: Memories of Nobody
The 1st Bleach movie.
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