In my case I change several times each days, among my favorites. When one of them got "tired" (= less than 20 Sta in Gather) I switch.

Originally Posted by Roentgen

My ideal secretary hasn't arrived yet (them bloody gachas), so I have Calla at the moment as she has been my lucky charm in stamina refills.

Attachment 2083

I am not a fan of Calla artworks, but I really love her Sprite (expect her strange attack animation with the weird jump).