Soul eater: What the hell is Kid's last name anyway?

Kid sat quietly in his symmetrical bed, when Liz walked into his room. "Hey Kid, just what is your last name anyway" she asked.

Kid raised an eyebrow "Why do you want to know that?"

Liz smirked "I just want to know my future last name"

(Sorry, I know its OOC, but the idea was dying as I Wrote)