After surviving the activation of the Ultimate Weapon and losing his memories, Lysandre becomes a disheveled and remorseful man seeking atonement for his past actions. Having been saved from death by Zygarde and cursed with the same immortality as AZ, Lysandre is forced to live with the consequences of his actions. This places him in a twisted, cyclical parallel with his distant ancestor, who also used the Ultimate Weapon to devastating effect. Now simply calling himself "L" he acts as a mentor.