Responses
You think the two man passing by are Hal and Sam. I disagree. Nobu is 16 year old, meaning so are Sam and Hal. They can't go to a Spa/whorehouse in Japan.
In previous, down there, you can find the raw until chap 7 and they still haven't been reunited
http://www.mangago.zone/read-manga/canis/mh/v04/c022/16/
I'm looking at this page for too long, hoping that they would recognize each other