[buzen knows that he's not very smart, and not always able to help in puzzling things like that. but what he can do is be a foundation for the people he cares about - and he knows he'll pick up meteion any time she could need him]

... I think it's unfair too. Ever since... I learned those feelings of hatred and bitterness - I wondered if it would be something like that.

[ . . . ]

I don't know if I can answer that for you, Mete-chan. If you hurt someone... what do you think you would feel? It's scary, right?