What does Lelouch of the Rebellion r2 episodes 1 and 2 mean?

Children’s Shoes, have you watched the ending of the first season? Lulu's memory was modified by Charles (his father) in three places, namely 1. About him being ZERO 2. About him being a prince 3. About Nunnally's memory. In order to draw out C.C., Rollo was Arranged next to Lulu to monitor whether he recovered his memory in order to capture C.C., so Rollo took Nunnally's place. Lulu also thought he had a younger brother. At the end of the first season, Lulu's memory was modified. Afterwards, the Four Holy Swordsmen of the Black Knights, Shan and Tamaki were all arrested, and Lulu Zero was also declared dead. Only a few people such as Kallen escaped and hid their identities as members of the Black Knights to work in hotels. Secretly looking for opportunities to restore the Black Knights, only she believed that Zero was not dead, so the scene in the second season happened. C.C's kiss awakened all the memories of the Black Prince, so he continued to command the remaining Black Knights during the hotel incident. Fighting against the Britannia Army, they also discovered Rollo's true identity, which made the Britannia side doubt whether ZERO had returned again. So in order to confirm, the Britannia Army decided to execute the captured members of the Black Knights. So Lulu took action to rescue them!