After you had collected EGO, just as what the Ego Rex, or the Facade had ordered, they told you to meet and face Es. As you did, you saw her waiting for you at the library.

Her appearance is that of a young woman with long dark hair, braided and swept to her left. She wore an elaborate and victorian-era-style formal european attire, along with a pair of white gloves. Her eyes observed you, while she then spoke up:

Es: "Look who showed up, I grew tired of waiting."

She bluntly grumbled, staring at you with a blank expression.