"I heard about the thing that I can't declare war without their permission, but what about the Royal Command? I didn't hear about that before," Ryder asked in confusion.
"Royal Command is something that the Crown Prince can use only once in his lifetime. In the absence of the King, the Crown Prince has the special privilege to use the Royal Command. As the Royal Command, the command would be as valid as the command from a King."
" Even if you use the Royal Command to declare war on the others, everyone would have to follow. You can even command for the death of a High Duke. Since the Royal Command is like the command from the king himself, the other High Dukes must do it. Maybe they didn't tell you because this is a dangerous command that they don't want you to use lightly," Miku explained.
"Interesting," Ryder muttered as he placed his hand on his chin.