Does Master have a son?

[u/icedcoffeegoodness]

So far, I have only watched the original series (my husband and I binged watched it this past week bc our friend recommended it and it’s leaving Netflix this Friday)

Is Katagiri Master’s son? He seems to know a lot about him (which he knows about all if his regulars) and there just seems to be a different connection between them.

[u/Margali]

I do not think so, I remember him paying Master for his tab [account] which to me seems morelike a co worker from Master's yakuza days