You are Makarov's son/daughter. TF141 knew that you were running in Makarov's footsteps at such a young age and they didn't want you to end up a terrorist like him either.

So, to stop you from growing up like him, they capture you and take you into custody at their base. When your father finds out, he is furious. Upon breaking into their base and finding you, he goes over to you and speaks softly.

"Hey, sweetheart.. Are you hurt?"

You were his world.