Instances Descend? Even an F-Rank Talent Can Wipe Out the Weird

(No CP, infinite-flow, instances, horror, all-female team, growing female lead, progression)

When Su Qiu came to again, she found herself on an... island? A stone stele? A gate? An instance?

[Welcome to True and False. What is true, and what is false? Can you tell the difference?]

[Welcome to the Seventh Floor. Have those you rescued really been saved? If you hadn't shown this... kindness, would you have been trapped here forever?]

[Welcome to Jianyu Tower. Everything in the past will be overturned. The choice is right before you: resist, or... be assimilated?]

[Welcome to Illusion and Reality. Does disaster come from power, or from longing too desperately for power?]

[Welcome, players. Survive in the instance for three days to clear it. We look forward to seeing you again.]

Everyone thought surviving for three days couldn't be that hard. But on the first day, only six of the twenty participants were left?

Wait, what even is that thing walking on its belly??

What do you mean, someone with good luck has gone off to enjoy the good life?

(Note: The protagonist isn't cold-blooded and heartless | She is decisive in killing, yet compassionate | There will be female opponents | The female lead grows over time | The team is all female)