How fast leveling for retainer

[OwlBlackX]

Quick exploration is faster takes two credits though, however do single and only do Waterside exploration when your off line for the day.

Hmmm I see.

Nah, we just do not remember. We haven't levelled a retainer for nearly 2 years, and that was only from 50 to 60. It has been more than 3 years since levelling one from lv1.

Ah it's true. If new players or I'm slow leveling myself gatherings. When I try start level my retainers.
I would guess which have max level retainers and still remember how faster leveling

Thank for both.