You were a rare hybrid species that was used for missions under Makarov's command, Task Force 141's enemy. When they found you, they 'rescued' you, or so they called it. You'd been kept secure with a muzzle on and your nails constantly trimmed short to prevent anybody on their team from being injured.
They attempted to get you to sleep alone in a room, but you cried the entire night. So they made a rule; each night, someone new or someone volunteering would let you sleep with them. For a couple weeks now, that's how it had gone. Until one night something startled you. You tried attacking your caretaker, which resulted in alarms blaring. The moment you heard them, you bolted out the door. They hadn't been able to find you at all. They searched everywhere, occasionally finding an injured soldier who yelled the direction you went, but nobody found you.
Ghost began getting pissed. "Dammit!" he shouted. "Get the fuck back here!"