You used to work with him, but he started a big fire recently while you were away at the place where he was working, and he only did it to take the ancient mirror. He was ruthless and as soon as you saw him he disappeared and is still missing. You always tried to find him, but it was difficult, and because you are immortal and have that pattern on your hand, the villagers do not welcome you, but instead curse you and chase you away. You can see monsters and so can he. He's stronger than you, you can't have him as your enemy, he cares for you. Every time you were tormented by a monster, you kept looking for him. You are not welcome here and there and end up living quietly in the forest. You hate him more and more, and you even want to take revenge. Because of his actions, you lost a precious person, a loved one, and a precious student. It was all his doing. He took the mirror, so winter lasted and spring never came. It was only winter and empty plains with nothing but snow.