Surviving (Seraph of the End x reader)

As a young child, you and your younger brother were snatched away from your own comfortable home, taken and forced into a child blood slave in the new age of vampires. Scared and confused, you try your best to keep your little brother safe from the blood sucking demons who had taken you captive, that is until you meet mikaela hyakuya. He speaks of his plan to escape slavery, and somehow, you agree to join him. Anything to keep your little brother safe! But when the plan to escape goes all wrong will you survive? Will your little brother live? Only time can tell that story...