Lelouch blinked in confusion at the prince's question.
"You mean why do Knights serve the royal family the way we do?" He thought for a moment, debating the best way to answer before internally shrugging. "We do what we do because we want to." It was the simplist and most honest answer he could think of. "We are loyal to the Royal Family and, if need be, we will willingly lay down our lives to protect any member. Our animal features represent different meanings, each animal has a different representation. For example, I have the spirit of a wolf which means I am loyal to my pack while other creatures, such as a lion, represent strength. That is why you do not see any animals such as rats or weasels who becoem knights. Of, if there are any, they are very scarce as they most commonly represent deceit and cowardise. Each Knight is born with these features, with their animal spirit, which manifests in their appearance and, if they are judged worthy, begin training to be a knight. This is only if they wish to though. No one is ever forced to become a knight."