In the series finale of Code Geass, the plan, dubbed as the Zero Requiem, during the parade, Suzaku disguises himself as Zero and fatally stabs Lelouch before they can proceed with the executions.
SCRIPT:
Lelouch: Suzaku, you have to kill me. You must promise.
Suzaku: You’re going through with this? No matter what?
Lelouch: As planned, the hatred of the whole world is now focused directly upon me. And now the only thing that remains is to get rid of me and finally break the cycle of hatred. The legend of Zero wasn’t dead. It lives within the hearts of the Black Knights. Schneizel will serve Zero also. With this, the world will gather not for an exchange of force but for an exchange of open dialogue around one table. Mankind will be able to move forward into the future.
Suzaku: And that…
Lelouch: Yes.
Suzaku: … is the Zero Requiem. We both realized it back in Cs’ world. We knew how humanity was longing for the future.
