There could also be Call Backs involving people that Kiryu and others have helped in the substories over the years like how 6 had substories involving characters from 0.
- Not likely. Ichiban was released from prison on January 2018, and the backstory notes that the Omi Alliance have already taken control even before he was let out. Project Judge takes place in the middle of December of the same year. This WMG will be impossible unless Ichiban's release date gets ret-conned to occur after the events of Project Judge.
- Considering his investigative nature, Yagami may end up incidentally finding out what did happen between the two games. Now its relevancy depends on if the producers intend on touching upon that.
- Jossed. The Matsugane family is a Tojo Clan subsidiary and is seen operating within Kamurocho, and the only Kansai element to this game is the Kyorei Clan. The Omi Alliance is not mentioned in this game at all. Judgement may in fact be taking place in an alternate timeline compared to the main series, but its point of divergence is unclear. Based on some references in the game however, it had to have occurred after the events of the first Yakuza due to an off-hand reference to Kiryu in the description for the Tiger Drop skill.
- Jossed. Onomichio only appears as the subject of a substory. That aside, it isn't abnormal for a mascot to be seen outside of its locality fulfilling its purpose of trying to attract tourists from bigger cities like Tokyo.