Hm... Because I wanna save the world. I wanna keep the city safe. If those guys attack us again, I wanna be able to come back to Mary-chan and Mecchan and Hina-chan and Mimi-chan and the dolls, and be able to say I did my best and they'll be okay now. I don't wanna make Neechan cry. If my friends who are even less human than I am get attacked by that gang who wants to keep them captive and dissect them, or anyone I love gets hurt by anyone else, I wanna help. I want to ask the guys who are doing this why -- why they hurt this world to begin with when it welcomed them and kept them safe, and why they won't stop. Maybe even change how they feel.

I think that's all the why.