Crown Of Ice And Snow

Before the war, Tadashi ended up with a seemingly normal crown, but it was far from ordinary. It gives him the powers of the ice and snow, but it cost him his sanity. He's afraid of hurting anyone, especially Hiro. Tadashi has to survive the war with Hiro who is now a bloodsucking vampire. 1000 years later, Tadashi is king of the cold and now Hiro has to help him remember himself.