From what he could remember, Randolf found himself inside a huge cylinder tube full of water. He was floating inside it.
He didn't know anything, but a large amount of information filled his mind at that time. Information about battle tactics, basic combat style, weapon master, the history of the world, humans, demis, monsters, etc...
Various kinds of knowledge were implanted in his head. It was a strange feeling. He wasn't supposed to know a single thing, but he somehow knew countless things. He didn't need to study and learn about languages because different languages were implanted in his head.
People wearing white robes were doing various experiments on his body.
He didn't need to think about what they were doing to him. He didn't need it at all. With all the knowledge inside his head, he knew that he wasn't a human, demi, demon, or monster.