A tear in space
Lex had approached Dr. Charles with the intention of creating a strong impression on him, and getting him to take refuge with the Midnight Inn. But, from the very first instant, things had not gone the way he expected. It seemed like even without putting in any effort, the man had been thoroughly dominated. After all, he dropped to his knees and called Fenrir grandpa!
That was a feat Lex had not been able to accomplish even as the Innkeeper, let alone as Lex. But all jokes aside, although Charles did not end up having a system, the man clearly had some secrets and unusual experiences. After all, he had directly called Fenrir by his name, and even addressed him by it.