Yu Nogi

Yu Nogi (乃木 優) also known as K, is the best friend of Keisuke Amasawa and a talented hacker that stole the avatar of Keisuke to fulfill his longing to be with Keisuke.

Appearance
Yu is an effeminate looking young man with medium length purple hair, purple eyes, and fair skin. He commonly wears a purple hoodie over a black shirt and white pants.

While under the guise of "K" he wears a mask that obscures his face along with a multi colored jacket, red pants, and white shoes. The mask he wears however is possessed by a Matadormon whose giving him the prowess in hacking and fanatically controls him in story progress.