For those whose characters have powers:

Our ocs were caught by the SCP Foundation and are being transported to the nearest base. 24 hours later, Class D agents are sent into our containment cells as test subjects to see what we'll do to them, if anything.

What do you do?

For those whose characters do not have powers:

Your oc is working as a Class D agent. One of the "disposable" agents. You are trying to work your way up but your best friend, also a Class D, was taken away for testing with a Keter class entity the day before. He did not survive. Now you are being sent for testing with Naomi.

She is the most recently captured entity and was labeled as a Keter after expressing extreme hostility and violence towards the agents who detained her, killing one of them. Now we shall see if she kills you too.