Was Felix actually qualified to learn the Phaeron Codex? Why? How was that even possible?

As someone who practiced the Red Moon Reincarnation Requiem, the Scarlet Lord had faced all kinds of enemies. Even when he couldn't win, he could usually survive. There was one exception—someone who could cultivate the Phaeron Codex. That was a threat he couldn't possibly contend with.

However, the Phaeron Codex was nearly impossible to find, let alone master. On top of that, its cultivation requirements were absurdly high. In all these years, no one had managed to learn it until now. And that someone was Felix?

The Scarlet Lord knew then that he wasn't getting out of this alive. Running into Felix was like a rat running into a tiger. No—it was worse.

Now suppressed by the Phaeron Projection, he couldn't unleash a single technique. This was the fatal weakness of the Red Moon Reincarnation Requiem. And who would've thought the second person to master the Phaeron Codex would appear at just this