Mercury

"a fine day for a hunt"

Background:

For eons, being that is now known as "Mercury" has been roaming the world under in one of a mortal species. This species was called by many names such as "The Demon Beasts", "Battle wolves", and such other epithets, however, their most distinguished feature is their lustrous black fur, preferences for a certain meat, and like their name implies, Fearless battle instinct.

A Natural born Alpha, Mercury quickly became the Pack leader among these semi-intelligent wolves and peerless in his intelligence, even enough to speak human language to some extent. But, as their ferocity grew in fame, as their infamy grew, naturally, hunters came to hunt them for the safety of their own people, invading their subterranean dens in order to exterminate every last of them.

Even though he had a limited human intelligence, he realized that by hunting "Prey" excessively, he would bring his entire species down with unbalanced diet and uncontrollable bloodlust, so in order to avoid it, he imposed an iron rule of thumb among his pack mates, but his semi-intelligent brethren appears to be hard on understanding him, causing his vexation. He soon came to develop a feeling of isolation from them, feeling as if he is of a different race from them.

So, he came to a simple solution, he will simply devour any trespasser daring to enter their dens, acting like a Guard dog, but he will soon regret this.

Even before having a single bit on the flesh of the intruders, an arrow imbued with mystic powers suddenly laced into his heart always kept in safety under his iron fur, as he saw an Elf with complete white hair and black gown staring at him with disgust as he realized her first blood as his consciousness fade.

He experienced darkness he felt for a very long time, like a dreamless sleep. His ability to dream is one of his highest goal in his life, to be able to dream properly, to be able to understand it.

But, It no longer became a dream as he heard a thundering voice, shattering the black sky above him, it says as the now-reincarnated "Mercury" snarled and howled contentedly, gloating his fur and red runes as the sign of being reborn.

"Devour them completely"

Now acting neither as a "Black" nor as a "White", He roamed the land in order to detect dangers, and keep his new Squadmates safe, Like what he failed to do in his previous life. But this time, He is understood, and feel accepted.