Aichi and Morikawa finds a club in their school named CF!? and when they entered the club they found there home room teacher and he said he is the one who made the club. The club name is Cardfight Club and there are are a total of 5 members including Izaki Yuta, their home room teacher and another minor member as well. Their teacher told them the best way to learn this game is through experience and what better way then having a battle in which they can learn through fighting.