Frankenstein

Frankenstein (Kor. 프랑켄슈타인) is the deuteragonist of the series. He is Raizel's devoted servant and has loyally served him for over 820 years. He is a brilliant scientist, whose abandoned research notes helped to bring the Union's scientific knowledge and technology to the advanced level it has reached in the series. Frankenstein is also the founder and current principal of Ye Ran High School, where he is known to all as the Principal. He is now the latest addition to the RK-5 bearing the title of “Number 0”.