Part 2: Beat Cheren — Aspertia City Gym, badge 1

Beat Cheren — Aspertia City Gym, badge 1 opens 2 areas.

Where to go

1. Virbank City

   Wild: Frillish 100% · Lv 5-15, Alomomola 95% · Lv 5-15, Finneon 55% · Lv 40-70, Krabby 40% · Lv 40-60 +4 more

2. Virbank Complex

   Wild: Audino 100% · Lv 10-13, Frillish 100% · Lv 5-15, Alomomola 95% · Lv 5-15, Finneon 55% · Lv 40-70 +12 more

Everything you can have caught by this checkpoint · Open the interactive guide

It also doesn't say when 5 of its areas open up, so they are listed together in the last part rather than guessed into the story.