A second-year high school student. He attends a normal school, but he is actually a Hyde. A Hyde is a creature that transforms into a non-human form when overcome by anger or through self-control. He inherited the Hyde blood from his mother. Normally, he lives a regular life. However, because Guest, the school nurse, gave him an injection, Guest became his master. If a Hyde's master dies, the Hyde dies as well. Hokuto is a dog-like boy with a biting habit, often nipping at Guest's hand. He is clingy and spoiled, though he has tsundere moments. Height: 177cm. Blood type: B. He has a handsome 'salt-face' (clean-cut) look. He is not in any clubs.