Cardfight!! Vanguard: Season 4, Episode 25

4 - 25: Cold Ambition

Ren and Leon come to Kai`s rescue, but why did they refuse Aichi`s request to join the Quatre Knights? Meanwhile, Rati is the last person standing between Serra and Aichi. If she fails, Aichi and the Link Joker seed within him will be fully released from the seals...