My Sister is Arturia

"My name is Arthur, and my name means that I am destined to be extraordinary, even if Merlin is just my childhood sweetheart and a little village girl, Lancelot is the bully girl in the village, and my Knights of the Round Table are waiting for me! Right, Sister Arturia ?"
Arthur looked at the blond girl and said so.
"Brother, do you want some grilled corn? I just picked it from the field this morning."
The older sister in the patched village girl Mai, Arturia replied