Junior sister, I really need to control you

Bad news: I've traveled through time.
Good news: There's a cheat code.
Even worse news: I'm not the owner of the cheat system!
Lord of the Cave Heaven: Mu Xiaoyu
My ambition in cultivation: to achieve minor success in the practice of "Samadhi True Fire".
Cultivation Reward: Thousand Years of Cultivation
Li Yinsheng stared at the panel in front of him, lost in thought.
The cheat ability is very strong, very good, very perfect, the only problem is that my name isn't Mu Xiaoyu!
Who exactly is Mu Xiaoyu? How could you be so selfish! Write your name on my cheat system!
What? So she's my junior sister?
What?! It turns out it was written with Junior Sister Mu's name on it. As long as she completes the task, I can get the reward?
Junior sister, get up quickly, stop resting, it's time to cultivate!
[Aspiration for cultivation: To master the "Earthfire Tempering Technique"]
Cultivation Reward: Three Hundred Years of Cultivation
Li Yinsheng: "Come on, junior sister, let's take a bath in the lava. It will help improve our physique and strengthen our bodies."
Mu Xiaoyu: "Do I have to go too?"
Li Yinsheng: "Yes."
[The Ambition of Cultivation: Making Havoc in the Underworld]
Cultivation Reward: Ten Thousand Years of Cultivation
Li Yinsheng: "Come, junior sister, let's commit suicide together and return to heaven!"
Mu Xiaoyu: "Am I going to die too?"
Li Yinsheng: "Yes."
[Cultivation Ambition: To challenge the ancient deity Xi Wangmu, the Queen Mother of the West, and the Five Deadly Realms, with the path of a sword immortal, in order to prove one's own Dao attainment.]
Cultivation Reward: One Yuan Hui Cultivation Points
Li Yinsheng: "Junior sister, you go and kill the Queen Mother of the West!"
Mu Xiaoyu: "Me?"