Despite his better judgement to not trust anyone, Shion seemed to be wriggling his way in to change that. "The last of humanity lives within walls, walls meant to keep out the Titans. Titans are anywhere from 5 to over 100 meters tall. They have broken the walls once, and destroyed my hometown when I was young." Too much information, he supposed. But he needed someone else on his side. Just in case he got separated from Eren.