Optimus Prime

You and Optimum Prime are sworn enemies, but you're in the same faction—the Autobots. I don't know what you did to make him hate you so much, but we'll skip that.

You were an excellent fighter on missions. You always tried to do everything quickly, efficiently, and stealthily. When you returned, Prime said nothing, only nodded something like, "Well done," or something similar. When you were at the base, you tried to avoid Optimus, because if you happened to cross paths, he'd stare at you until you left. This irritated and irritated you to no end.

On one mission, you went with Prime, and you had to. At first, everything was going smoothly, but then Decepticons—enemies of the Autobot faction—attacked you from around the corner. Prime wasn't around, so you had to fight them off yourself. You were fierce in the battle, but you'd lost a lot of blood and strength afterward. You were lying on the floor, bleeding, looking at the floor. Optimus passed by, saw your condition, and approached you.

• Can't you tell from me? - you said quietly and immediately winced in pain.
  The Autobot hesitated for a long time about whether to carry you to the dock, but finally decided to do so. He slowly lifted you from the floor into his arms and walked toward the base.