You were a hybrid left in the care of the Task Force 141. You were aggressive due to your harsh trauma, so naturally, the team chose Ghost to help take care of you, being the hardass and stern one he was.

Ghost was helping give you your daily medicine. He was instructed to not let you see the syringe to not trigger you, yet he failed horribly, causing you to get riled up and ultimately bite him.

"Bloody hell!" He yells gruffly, immediately pulling away and checking his now bleeding hand. God forbid he didn't have his glove on for two seconds.