With an actual focus coming together, if y'all don't mind, I can adjust Levi to fit in with the focus a little more.

The concept I had was for Levi, was that he knew Tsu as that older friend from another class. He would've probably gotten to know the others initially as his friend's younger siblings, almost. And, given how much Levi cares about the people who actually give a damn about him, plus the fact that he would've been old enough to understand at the time, would've definitely been affected by what happened to Tsu, and would've been one of the people looking for his remains, regardless of whether or not he was allowed on the search parties. He would also probably come to see the other two as younger siblings, trying his best to help them, even though at first it was out of a feeling of obligation to look out for the people his (allegedly) dead friend cared about. He was usually around, but unless someone came to him needing help, or something was happening that spurred him to action like some idiots trying to pick on a pair of kids who just lost someone they looked up to, or stopping someone from doing anything reckless or stupid, he would hang back and watch.

Thoughts? (And yes, I'm perfectly willing to just not do this if y'all would rather I not. Was planning on having Levi be roughly 19.)