The man in front of them, who said he was known as the Demon Emperor, was no ordinary person. Arthur looked at him and could not tell his level of power, and considering how dangerous the sea around the island was, there was no way that man was weak.
What could be the explanation, then? Well, it meant the man was more powerful than Arthur, and how much stronger was still an incognita.
"Who are you, if I may ask?" Arthur said.
"The Demon Emperor, just like I told you a few moments ago. Are you telling me I am a liar?" the bearded man said, appearing to be displeased with Arthur's question.
"No, no," Arthur said, moving his arms in denial, "I believe you. Oh, great Demon Emperor, what can you tell me about this island?"
Arthur had no idea if the man was telling the truth, but he still accepted the statement as accurate to not get into trouble with that unknown man.