Eerie Invasion: I'm a Spy, but Am I Even Human?

[Eerie game dungeons + eerie invasion of reality + lone wolf + ensemble cast + pure comic-relief troublemaking System (the heroine rolls her eyes)]

Once you turn eighteen, you might be pulled into an eerie game dungeon.

From elementary school and middle school to university, in addition to regular classes, students take two more courses: Eerie Theory and Eerie Combat.

Yan Congxin got perfect scores in every subject and thought she was ready. But the moment she blew out the candle, an invitation to an eerie dungeon appeared before her eyes.

All the blood in Yan Congxin's body seemed to freeze. All she could do was cry out in despair, “No!”

“Welcome to your first eerie game dungeon. Warning! Warning! Data error! ... You're not human?!”

The cheerful mechanical voice abruptly devolved into garbled noise, ending with a sharp female voice.

I'm not human? Yan Congxin stood there, stunned.

“Welcome to your first eerie game dungeon. Due to your special identity, you have been assigned a unique hidden mission: you will serve as a spy for the eerie side among the human players.”

The next moment, Yan Congxin was dazzled by a flash of light. She was no longer in her tiny apartment, but in a magnificent hall.

She had appeared in both the eerie management group and the human players' group.

“Congratulations, Host. You are a perfect match for the Slaughter System. Would you like to bind with it?”

Yan Congxin shouted in her mind, “No!”

“Since the Host hasn't spoken, we'll take that as consent. System binding complete.”

Yan Congxin was utterly overwhelmed. She tried to play the saint, but people still died because of her.

Slaughter: TRIPLE KILL! Nice work, Host!

Audiences in both the eerie world and the human world began to notice something was wrong.

Players: 11/10. Why is there one extra person?