Cardfight!! Vanguard: Season 4, Episode 15 - ProjectFreeTV

4 - 15: Island Awaiting The Wind

Kai and friends decide the only way they can get strong enough to defeat the Quatre Knights is through intensive training... but who is both strong enough, available, and willing to train them? Leon Souryu! So they travel to Leon`s isolated island, where an important lesson is waiting for Ishida.