"I want to give you a choice, so for the first time in your life you can decide your destiny, but also you have 5 seconds to give me an answer and I'm taking away an alternative, it's either MY choice or your death" ...
So, one day I saw this manga that was about a human guy that ends up in something like a demon school and to survive needs to make a contract with a demon, or something like that. There's also a small demon that goes on a killing spree. I don't remember anything else
"I want to give you a choice, so for the first time in your life you can decide your destiny, but also you have 5 seconds to give me an answer and I'm taking away an alternative, it's either MY choice or your death"
...
Literally....