Survive in Azure Files

I woke up from my dream with incomprehensible mumblings echoing in my ears.
I forgot myself and lost my past. I looked around and realized that I was in hell.
The sound of explosions resounded through the blue sky, bullets raged in the streets like a torrent, and the flames of war were burning on this land all the time.
The aliens living here have seemingly fragile bodies but are not afraid of ordinary firearms. They form gangs and factions for their own purposes and fight each other all day long.
Then, they found me.
They called themselves students and told me this place was called Kivotos.
They also call me like this -
teacher.