October Request: Vowed to Protect

Just as the doll was about to shoot her in the head,
Katsuo intercepted and grabbed her away to safety. 
Seeing how Nina was hurt, he began to feel the anger boiling within him,
Remembering the vowed he made to protect whom he loved, 
The reason of which he have trained so hard for.

Nina and Katsuo belongs to leprincexD
Requested by leprincexD 

This is actually one of my experimental piece where I start detailing the background before the main character. Turns out pretty good, especially with my art bible with me XD