[He has to admit that he's rather curious about what his agreement would entail. He's hardly accustomed to using magical abilities of any kind, and Chrom could certainly use the practice and experience from someone better versed in such arts.]

In the halidom of Ylisse, I led a group of men and women to combat invaders and protect towns from bandits and supernatural creatures. We were called the Shepherds. And no need for titles; just Chrom will be fine.

[He smiles.]

What do you mean by 'purify'?