Cardfight!! Vanguard - 1x43 - Season 1, Episode 43- Followmy.tv

Kamui is concerned when Aichi stops coming to Card Capital after the tournament. Aichi continues to be haunted by Kai's words and finds himself unexpectedly at the door to the PSY Card Shop. Aichi enters the shop and is greeted by the members of Ultra Rare where he asks them if he was strong in the last tournament. Everyone is then surprised when Ren enters the shop. Confronting Aichi, Ren explains what has been happening to him lately and the nature of the power, PSY Qualia. Ren tells Aichi that Kai will only acknowledge strong fighters and that he must get stronger. Ren then gives Aichi a Shadow Paladin Deck, the dark opposite of his Royal Paladin Deck. Seeing through PSY Qualia, Aichi is nearly overwhelmed by the deck's power and believes this new deck makes him invincible. Kourin believes he's being arrogant and challenges him to a duel with her Royal Paladin Deck. In the match, Kourin is easily and soundly defeated by Aichi using Blaster Dark and his new Shadow Paladins, demonstrating the fearsome power of PSY Qualia. All the while, Ren watches from the shadows, smiling and encouraging Aichi to embrace his new dark power.