[Through the book + system + yandere + forced love]
[Cruel and ruthless senior sister × Shirogiri and black yandere junior brother]
Yun Luan takes on the role of a vicious female supporting character, revealing her identity as a spirit from another world.
In order to return to modern times, she did several things, including changing her destiny, destroying her sect, and robbing treasures. All bad things were done.
Unexpectedly, the late system came online: [Main mission: You have to survive until the end of the chapter to prevent the yandere villain from destroying the world.
Yun Luan:? ? ?
She stepped into the desert and rescued the injured child, only to find that he was laughing at the tide of beasts. A drop of blood could break the ancient seal.
System prompt: He is an uncontrollable villain.
Yun Luan:? ! What kind of monster did I raise!
She said "he is just a slave", but in action she blocked all attacks for him.
Yan Yi's favorability score jumped repeatedly in the abyss of -419.
Only then did Yun Luan realize that she was not completing her mission. She was raising a world-destroying villain.
Years later, Yun Luan asked: "What's the villain's favorability rating now?"
The system stared at the already explosive red value on the screen and lied tremblingly: "20."
Yun Luan was kept in the dark and had no idea at all.
The villain has already taken control of the system and blocked her way home.
Until one day, Yun Luan discovered this secret and fought wits and courage with the villain and the system.
PS: The female protagonist fights monsters alone in the early stage and upgrades, and the male protagonist appears in Chapter 15.