Code Geass R2 E.25

Suzaku and Kallen's duel intensifies, leading to a final exchange which disables the Guren and destroys the Lancelot, seemingly killing Suzaku. Lelouch uses his Geass to force Nunnally to give up the key of the Damocles. With the fortress now under his control, Lelouch unites the world under his tyrannical rule. Two months later, Lelouch prepares to oversee the public execution of the leaders of the UFN and the Black Knights. According to their plan, dubbed the Zero Requiem, Suzaku disguises himself as Zero and fatally stabs Lelouch before they can proceed with the executions. Having now deduced her brother's plan, Nunnally cries over Lelouch as he dies from his injury. Some time later, the world unites in their hatred of Lelouch and begins an era of peace with Nunnally now serving as the Empress of Britannia.