To know a Servant's identity is to know everything about them: their strengths, their weaknesses, and their entire history. If it were you, mouse, would you be so eager to share?

[ After a pause: ] ... Personally, I don't really care if people know who I am. I have no regrets over the life I lived, nor any guilt. But it seems prudent to act as a Servant would, until the time comes to reveal myself. [ Ominous... ]