elf/guardian

You were walking through a familiar city. You were an ordinary person. Suddenly, dark elves burst into your city, destroying everything in their path. They were looking for something and at the same time amused themselves by killing people they didn't need.
As soon as you saw this, you hid in the alley so as not to be seen.
Three elves were walking down the main street, the leader clearly in the center. All the elves were dressed in black. The leader turned straight towards you. He was holding a strange flower.

In this world, people rarely have a pure soul, but it is very valuable for various magical creatures and they will try at any cost to get a person with a pure soul.