Yakuza: Like A Dragon – Who’s That Sujimon!? (Substory/Side Quest) Guide

Game Guides

Yakuza: Like A Dragon has many different side quests or substories that you can try to find and complete, one of which is Who’s That Sujimon!?

This substory / side quest can be found whilst exploring Isezaki Iljincho, E Central St

It involves meeting a Sujimon and getting an introduction to the SujiDex

  • LOCATION: Isezaki Iljincho, E Central St
  • QUEST GIVER: Degenerate / Sujimon Sensei
  • CHAPTER: Chapter 4 – The Dragon Of Yokohama
  • This substory is actually unmissable and will occur during Chapter 4 – The Dragon Of Yokohama
  • As you get forced to travel E Central St, you will come across a strange man wearing only underwear and a coat
  • You will quickly be forced into a fight against this guy (Degenerate Tomita) with some amazing and different music in the background
  • Anyway Degenerate Tomita is not that strong really and is often weak to Pyro Belch
  • After taking care of Tomita, Sujimon Sensei will now arrive and a rather long cutscene will take place
  • I find it strange how Sujimon mentions two tough guys, what about poor Adachi? For me there was 3 characters during this scene and they only include both Nanba and Kasuga. Kind of strange
  • Anyway eventually you will be forced to pick a favourite colour, either Green, Red or Blue. It really does not matter which one you choose as you will be forced to fight all 3 regardless. The colours may effect the sujidex menu but in all honesty I am unsure and have yet to test this but for the most part it does not matter what option you pick
  • After the fight you will learn more about the Sujidex App. You will also be treated to several Pokemon puns and references. (Gotta’ catch them all!)
  • For a list of Sujidex App entries go here



  • 500 Yen
  • 49 Experience
  • 45 Job Experience
  • x1 Mysterious Stone

Akai, Aoki, Midorikawa

  • 1,500 Yen
  • 147 Experience
  • 135 Job Experience
  • x2 Thick Cloth
  • x1 Rough Lumber
  • x1 Immaculate Pane
  • x1 Clear Pane
  • x1 Beautiful Cloth
  • Green Sujimon Sujidex
  • Blue Sujimon Sujidex
  • Red Sujimon Sujidex
  • Sujidex App is now available


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