Thriller Game: I Rule the Server by Raising Ghosts

As she died on the operating table, she heard her husband sneer:

“Using her kidney to save my beloved? Good. She can die for all I care.”

After she was reborn, a System prompt sounded in her ear:

[Medium permissions activated. Would you like to make a pact with your first ghost servant?]

She looked at the red-clad female ghost beside her and smiled.

“From today on, you belong to me.”

Later, the whole world called her

Mistress of Ten Thousand Ghosts.

But the ghosts had this to say:

“She’s not our master. She’s our big sister.”