The Cs' World is the fifteenth episode of Code Geass: Lelouch of the Rebellion R2.
Summary
Suzaku realizes he cannot stoop to Lelouch's level to achieve his goals and forgoes using Refrain on Kallen. Ohgi and Villetta meet in the woods, where she intends to kill him, but Ohgi confesses he has fallen in love with her. Sayoko interrupts their rendezvous. Nina and the In Vogue staff make their first successful bomb test, while Lelouch confronts the Emperor atop the Sword of Akasha. He learns his father has taken V.V.'s "Code," which has made him immortal. C.C. appears and reveals her wish to die, which would make Lelouch immortal as his father. However, she spares him that fate, transporting him to "C's World" to ensure his safety. There, Lelouch witnesses her past, but upon realizing her true desire, Lelouch returns to reality, proclaiming he shall be the only one to grant it. He attacks the Sword of Akasha with the Shinkirō and rescues C.C., only to find she has lost all her memories except those before receiving the power of Geass.