"Listen carefully. I won't repeat myself.
Aizawa Shota is innocent.
Do not even think that you can use him to your advantage. If you do, I swear by the name of the Reaper that I will make your life a living hell.
I won't hurt you, but I will make your family, friends, everyone you care about suffer.
This is not a threat. This is a promise.
Do not doubt my words.
You should know what I am capable of. And I will not stop even if the rivers run red with blood.
Do you understand me?"
The head of the police nodded.
"Good."
Rey released his hand and dropped the man onto the floor. With a second glance back, Rey flew off into the night skies, the pool of blood he left behind reflecting the moon's light.
Aizawa watched the boy disappear in the darkness. His hands curled into fists. His fingernails pierced the skin of his palm and drew blood. His heart hurt so much.
"I'm so sorry, Rey."
This is an older fanfiction that I wrote, so I apologize for the grammar mistakes and inconsistencies. I may consider rewriting this one.