When an art gallery, with the Emperor Charles, was in control by the Black Knight, Suzaku was sent by Schneizel to try and prevent any civilian from getting hurt and was surprised to find that Kallen was a member and revealed that she is half Britannian-Japanese, but left her when he realised that Zero is after the Emperor. When he arrived he saw not only the Emperor dead but saw Schneizel being shot by Zero, causing him to shoot shot his gun at his mask, which cracked and was shocked to see that it was Lelouch as Zero. When he demand why he did it, Lelouch replied that he only did it for the both of them. Suzaku find it hard to believe as the two point the gun at each other and fired, with Lelouch missed the shot and Suzaku shot away Lelouch's gun, but later one of the Glaston Knights shot at Lelouch and leaving him injured. Schneizel praises Suzaku for his efforts, but mentions the event that happened seven years ago, which he shouldn't have known about. Suzaku is torn over the decision to execute Lelouch, since it will take Nunnally's brother from her.