I personally rarely have any problems with stamina and it isn't unusual to find myself spending half to 2/3rds of my day on the game. I do 2 labyrinth runs (which is totally worth it once you are strong enough and understand what you should be doing in there), auto-grinding, and all that good stuff. I go to bed and ta-da plenty of stamina to last me 3-4 hours. Maybe that is just the pace at which I like to play games that does, Idk.


I would also like to note that the bonus package for just being online does on two occasions a day give stamina.

Also, the assistant's gifts/rewards could include like 5 stamina or something like that.