Prince of Tennis: the Prodigal System

I admit that I am a prodigal, but I was forced to do so! Because I don't spend money, the system will deduct my endurance... Don't ask me why I like being slapped in the face, because this feeling has become addictive to me! "Strange Light", "Shadow Ball", "Illusion Ball", "Dark Night Realm", "Strange Wind" Yes, I am the King of the Night in Prince of Tennis! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.