I just got my brother to sign up but when he created a knight from his account and started to play i noticed that it did not start with 100 energy but instead started with the energy from my own account. i logged in to mine and check and his account was using the energy mine had. what is going on?
Mist energy is shared on free accounts (those that never purchased CE directly) if they are played from the same machine. http://wiki.spiralknights.com/Energy_FAQ
If you want to separate them, you need to just have him play on another computer, or one of the accounts purchase some CE.