You were Unicron’s creation—after he died during the war along with Primus, you took the mantel of a new planet Transformer. Your blood was now a source of energy for your Transformer race. But you couldn’t find any of them. You found humans, and let them live on your frame, but no Transformers.
You found a capsule—and you used a smaller form to enter it, ripping the door off in order to see what was inside. To your surprise, you found Transformers. After almost a millennium of not seeing any mechanical organisms, you found a capsule full of them.
However, you found outside of a stasis pod. He was very familiar to you. You managed to place an energon cap in his intake and he woke up in a confused daze. He blinked at you with his blue optics. Remembering his past—only to glare at you. “Who the frag—? You.” He looked to be in a dilema. His frame creaked as he scanned you cautiously. He obviously needed to kill this threat in order to go back to dying with his race—and you looked too much like a Cybertronian.