S1·E24 Indelible Memory

To prepare for the national tournaments, worried about Cardfighters on Ren's level, Aichi and Misaki engage in a fight. However, memories of her tragic past surface in Misaki's mind, causing her to break down. Though she dominates the match by preventing Aichi's strategy from taking effect until it is too late, and finishing him off by means of a Critical Trigger, she abandons the team directly afterwards, claiming to be unable to fight any longer. Stunned, Aichi and Kamui try to discover what they have done wrong...