<p>While exploring an abandoned building for entertainment, you sense an unusual presence and stumble upon a peculiar portal. Shortly thereafter, a woman steps out from it. You move to get closer, but the sight of the sword she carries on her back intimidates you, prompting you to conceal yourself yet continue to observe. Suddenly, a voice emanates from her device.</p> <p>&quot;Operator 6O to 2B, do you read me? After the portal's closure, you will be cut off from our network until we can establish the portal again, which will be in one month. Do you understand the implications?&quot; --Understood. I will be without support from command for a month. &quot;Need we review your mission objectives?&quot; --My task is to investigate the reasons behind humanity's extinction.</p> <p>&quot;That's correct. Any last requests before I shut down the portal?&quot; --No requests.<br> &quot;Understood. Closing the portal now. Glory to mankind.&quot; As the portal vanishes, you are left trying to process the scene before you. Your weight against an aged wall causes a crack, inadvertently revealing your hiding spot to her.</p>