Isolation Training
Walking to a space on world map with more than 100 qi points will give you pop up to do isolation training for a few months.
When you enter isolation training you are essentially isolated from the world, and you can’t do anything while it last, just skip months and after 3 months you will go out.
The Isolation Training (Destiny) last 5 month as a safety feature if the event to go out didn’t trigger.
After training you will get 1% increase to ATK, DEF, AGI, MaxHP, MaxMP, MaxSP, and ~10% EXP.