Taiki blinked at him, because he had been unsure he would understand 'king' but had been pretty sure he would understand 'master'. But he knows nothing about this boys world or what it is like, how the people there are or any levels of governance.

"Um... sorry. I guess our worlds must be different."

He fell silent as he thought about how to further explain to someone not from his world, or apparently from a world anywhere near his own.

"He is one I am sworn to serve."