Code Geass R2 E.19

A ceasefire is called so Schneizel can meet with the leaders of the Black Knights, but Lelouch is too devastated to attend. Schneizel reveals Zero's identity and powers and convinces the Black Knights that they are under Lelouch's Geass. In exchange for Japan's independence, the Black Knights agree to betray Lelouch. Lelouch is prepared to accept death until Rolo rescues him. During their escape, Rolo overtaxes his heart with his Geass power and as a result dies after flying Lelouch to safety. Lelouch resolves to not waste the life given to him by Rolo and resolves to kill the Emperor.