Shiro smiled as he looked to the sparring fairies. "It is an old fairy tradition called tatakai. Any fairy who feels like they are powerful enough sign up and enter the magic circle. Inside it the very rules of life and death are broken. They can go all out, using as much force as they want and still not kill the other. It is really quite an event to see. Fairies possess some of the strongest and purest magic in Yokai. They can even alter their size, which is not common in other races. The fairies true size isn't all that big. Would you like to observe it?" Shiro asked, walking her over to the circle.