I'm seeing death flags all over Chiyozo. He forms a new bond with a group of children, Azumi's target takes advantage of this, then Chiyozo risks his life to save them. Don't let it happen Azumi.
Glad you got reunited with your son Azumi, now try to not get him killed please.
I am having high hopes for On to become Chiyozo's interpreter if things turn out fine... which they rarely do for Azumi's companions.
With all this not-exactly-subtle emphasis on ''being useful'', I can only foresee tragedy for On and Chiyo; which is especially sad because now I want to adopt On and protect him with my life.