Hey the concept of a little sister was new too. He only had a little brother before this, and he was not like Yotsuba at all, but that was fine. He knew how to be an older brother... Even if he was frightened and confused. Part of his job was acting like everything was going to be okay, so that was what he was going to do.

"We'll b-b-both be b-brave, kiddo. Ain't n-nuthin' gonna stop us, right? We're an unbe-beatable team."