↳ Candidate #5: Ulquiorra Cifer
"Hearts, you say? You Humans are always so quick to speak of such things. As though you carry your hearts in the very palms of your hands. But this eye of mine perceives all. There is nothing that it overlooks. If this eye cannot see a thing, then it does not exist. That is the assumption under which I have always fought. What is this "heart"? If I tear open that chest of yours, will I see it there? If I smash open that skull of yours, will I see it there?"