Grimm, like Cyril and Ciara, was a demon lord of the Nightmare. Grimm, on the other hand, was more cruel than brutal. He did not slaughter his prey as other Demons. Instead, he would torture them until hearing them scream in agony and watching them flutter, all he wanted was to see others suffering the pain. He crazily loved the pain, for him the pain was like a beautiful symphony and he was the artist finding the rhythms of his life. For that reason, he left Greenland and reached the Nightmare - a world filled with sorrow, where he could easily enjoy the pain he desired. Living a peaceful life on the Greenland was not for a cold-blooded artist like him.