Bloodstained: A Haikyu!! Fanfiction

⚠️ WARNING ⚠️ This story contains mature events and could trigger some people. It includes blood, murder, harm, and other quite intense scenes. If you are not comfortable with that, I suggest to not read this. Thank you! We are assassins. We have one job to do. Do it well, and no harm shall come to you. Make a mist...