@Figure it out , in the novel it just says Murong Qi regained his memories and he decided to meet Han Jue so he could return to the Immortal Realm for revenge and to grow stronger

Novels who take place in the same world in chronological order:

Invincible Mumu > Absolute Sword Sense > Myst Might Mayham / Supernatural Power > Nano Machine > Descent of the Demon G**

@Kaiser Nano Machine, Myst Might Mayhem, and Absolute Sword Sense

@Yuki Thanks for explaining

@JADE They don't need to know, but I hope they do. Because I still can't imagine how they're going to forgive him since he is the main reason why they had to suffer for all those years, also the reason why their father figure died. I hope they forgive him, even if they don't I hope he forgives himself.

@lvlHive yes, his cultivation realm before he dies (in the simulation) or items or random talents