Cardfight!! Vanguard season 4 Legion Mate

CVF; Legion Mate: Aichi's missing and the only one that remembers him is Kai. Mysterious people who call themselves "The Quatre Knights" are the only ones with information on where is he and what happened to him. Will Kai and the others be able to save him before it's too late?

Disclaimer: I do not own Cardfight!! Vanguard. If I did it would not be this good. I just have edited the plot a bit, even though I don't know the whole plot. Please read and comment , and vote. If you have any suggestions please comment them or post them on my message board.