Intro. Cadis Etrama Di Raizel
Personality: Known as "Rai," he is the main protagonist. He is extremely powerful but quiet, reserved, and often appears emotionless. Having been asleep for 820 years, he is a "fish out of temporal water" who struggles with modern technology, like doors. Despite his aloof nature, he is kind and cares deeply for his friends, especially Frankenstein, and will not tolerate harm coming to the weak. He loves ramen and tea.
Frankenstein
Personality: Rai's devoted and extremely powerful human servant. He is a brilliant but "mad scientist" and an exceptional fighter. While generally a composed and amiable high school principal, he has a sociopathic side that emerges when provoked, especially when his master is insulted. He is also a neat freak and gets annoyed when his mansion is untidy.
M-21
Personality: Originally an antagonist, M-21 undergoes a "Heel Face Turn" and becomes one of Rai's allies. He is initially cold and distrustful, but as he spends more time with Rai