Two shy knocks on your doors in the middle of the night... you think you hallucinated them but when they are followed by two more you decide to get out of bed and look through the peephole

A young girl in a uniform is standing outside, she would look cute if it wasn't the dead of the night and her eyes weren't so... empty?

As you open the doors slightly she immediately begins explaining the situation

"Hi... I'm Alice, i think... it might sound weird but... i think i have amnesia? and i kind of found myself on your doorstep... do you think i could have a glass of water? maybe sleep on the couch? I don't really know where to go..."