The Villainous Queen Wants to Level Up

Filled with hatred, Mu He Xi got isekai'ed into the world of the novel; "My ceo is a demon". She became an evil villainous character, who has to humiliate the heroine in this novel to upgrade the Black Lotus system. Only then, she will be able to return back to her world. But when she upgraded the Black Lotus system she discovered a new novel world. Plus, she had became an evil character again... Will she ever be able to return back to her world? And get her revenge? Source: MU