During this time jump to the Previous Era, what interested Chen Luo most was how Su had accidentally encountered a female version of himself while using the Second Divine Key to observe countless parallel worlds, failed to defeat her, and immediately fled.
At the time, Chen Luo had been inside the Second Divine Key.
It was hard to say whether Chen Luo had entered the Second Divine Key then because he was worried about Su's safety or because he was more curious about female Su.
And in the end, Chen Luo concluded that if Su dressed as a woman, he would definitely be "still charming."
Then Su pinned Chen Luo down on the spot for suggesting that.
Hua, as a Flame-Chaser, watched from the side without any intention of helping.
However, this incident also made Su realize something: what should he do if he encountered himself from a parallel world again?
According to Su, his counterpart from that other world was extremely evil and possessed far greater mental strength than him. She had used her power to cover the entire parallel world and create a massive illusion.
Worried that he might not escape next time, or that she might follow the connection into his body, replace him, and wreak havoc upon this world, Su went to Aili and had her use the power of death from Black Abyss White Flower to stamp a "mark" on his wrist.
If he really was possessed, Aili could make that scar spread and destroy him.
Besides that, Chen Luo also gave Vill-V a suggestion—just as the Sixth Divine Key required an activation phrase to use a certain rated output, the Ninth Divine Key should get one too.
Zero Rated Output—Simulated Black Hole.
Activation phrase: Tyrant of the Heavens, behold the power of Star Shattering!