Who is this shadow from the second Valvrave ED?
This character is revealed at the end of episode 12.


   Cain entered the cockpit of the Valvrave Two (which didn't start up until this episode) with an orb that he referred to as Prue.

 

 The helix in the orb reacted, and at the same time, the display in the cockpit of Valvrave Two showed an image of a man, which matches the shadow in the question.

 

 The girl in Valvrave One refers to him as Onii-chan.