Rule Horror: My Way of Clearing the Game Is a Little Strange

[Rule-Based Horror + Strong Female Lead + No Romance + No Female Rivalry + Mild Horror + Teammates Appear Later + Infinite Flow + Golden Finger]

A few things to note:

1. This isn't a power fantasy. The golden finger has little effect early on and can only be used once per instance.

2. Teammates start appearing in the third instance, both men and women. From then on, the instances are multiplayer; the first two are solo.

3. The pace varies according to each instance's difficulty. Multiplayer instances move a little more slowly.

4. All instances are original, starting with the most familiar setting of a family of four~

“Are you asleep, my dear little sister...?”

A low voice whispered in her ear, carrying a strange, sinister laugh.

“Brother” stood by the bed, leaning over Su Yao as she lay there, the corners of his mouth curling into a chilling smile.

With a luck score of zero, Su Yao kept her eyes tightly shut and cursed the System a thousand times in her mind!

How was she supposed to clear an instance that was difficult on top of difficult?!

Hey, System, could you give me a teammate with maxed-out luck to make up for this?!