After you got to Level 70:
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Source: @smol [D-Ms]
- Go to Ereve and talk to Neinheart if the lightbulb does not appeared for you.
- Neinheart will say that you need to obtain an Ereve Investigation Permit from him.
- You need to obtain a Dark Crystal from refining 10 Dark Crystal ores at Vogen in El Nath Market. If you trained at MP3/GS2 earlier, you would have a lot of these.
- Trade in the Dark Crystal to Neinheart to obtain the permit.
- Go to Training Forest 1 and enter each of the portals at the top right and left (boxed in yellow). You are trying to find your job instructor.
- If you don't see them in the maps I listed in Training Forest 1, then go to Training Forest 2 and enter the maps boxed below in yellow.
- Fight the clone of your job instructor and remember to loot the item it drops.
- Bring the item back to Neinhart in Ereve. (Or is it your job instructor? I actually forgot this one!)
- You should advance at this point. Yay!
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Source: @smol [D-Ms]