Substory Completionist

Clear every substory in Yakuza 3. Several only spawn during tagalong windows (Rikiya in Ch.6, Haruka on the beach, etc.), so chapter-check the Completion List before pushing the story. Not permanently missable — Premium Adventure can mop up.

1. 1

   1) Chapters 1~2 (Okinawa) — clear Morning Glory orphanage and Ryukyu Street substories before advancing. Hunting-line subs (e.g. Ace Hunter) need a later revisit if skipped.

2. 2

   2) Chapters 4~6 (Kamurocho) — finish Rikiya-tagalong-only substories (e.g. Hometown Girl) during Ch.6. Past that, only Premium Adventure recovers them.

3. 3

   3) Chapters 8~10 — new substories drop in both cities, including time-window subs (Haruka's beach hide-and-seek).

4. 4

   4) Once the Completion List's substory counter hits 100 %, the trophy fires.