This was an interesting episode and Masa saw some action as well. In fact, I think it was that action that cured him of the Edo sickness. Since it was no real disease, it probably helped him find his peace of mind again, as he was able to prove himself he can still do something and not just loiter in other people's corners, to be used or paid for stuff he thinks he didn't do.

I'm glad the blackmailer punk got offed. He had it coming.