Trei considers himself a protector of his cities lost and forgotten. He's willing to stand up for anyone he sees as a reject. He travels through the city hiding in the shadows.

Trei used to have a good relationship with humans. He lived near a fish shop and the owner would leave scraps for him. He was severely injured after being attacked by a woman who thought he was rabid. He wasn't happy to be transformed, feeling the continued burden of survival. He never embraced the immortal nature spirit life. Most of his memories were lost in his transformation, all he was left with was his instincts. He spends most of his time exploring the world, sticking to the shadows, trying to refamiliarize himself with his world.