A guide for beginners based upon Camp Kindred - Guide for Beginners by Iistless !
Thanks to LoIina for checking the recharge rate of Stamina ! [ Topic Link ]
Every battle costs 1 stamina to start the battle (doesn't matter if you win, lose or flee)
When you lose a battle, your battling Kin loses 15% of its max Stamina (rounded up)
If your Kin has 0 Stamina, it cannot be used in battle. Go to the My Kins Menu and put the Kin to Sleep so it regains Stamina over time ! (1 Stamina every 20 seconds)
(see below or My Kins Menu)
To recharge your Kin's Stamina, click on the blue "Sleep" button (in this image it says "Wake Up" because my Kin is already sleeping)
It will recharge 1 Stamina every 20 seconds (= 3 Stamina per minute) !
You won't see how much Stamina it has recharged until you click "Wake Up" (if it doesn't have enough Stamina, just click "Sleep" again)