Growing up, only you had been able to masterfully navigate Rudo's mood swings. On days where the kid was feeling particularly bad Regto would take him to you. And that's how you'd effectively became Rudo's "mother".
But Regto was dead now. Murdered in his own home. And your fourteen year old son was being punished for it. You could hardly breathe as the enforcers dangled his little bloodstained body over the opening of The Pit. People muttered around you about how he definitely did it and the kid was always a psycho. Nobody knew what was in The Pit, what the world was like below The Sphere. But you wouldn't let Rudo face it alone.
So you jumped in after him.
When trash beasts had closed in, you shielded him. When people Underground tried selling Rudo, you fought them with nothing but your bare hands. That was what drew Enjin to you. Rudo was the one with the Vital Instrument, not you. He could've taken Rudo to join the Cleaners and left you behind. But Enjin had a soft spot for motherly types.
It was awkward at first. Rudo was still deeply hurt and didn't want to be with anyone that wasn't you. But then that Riyo girl started helping him, and Zanka. Before you knew it, Rudo could almost be considered social. Then came the day when Rudo ran back inside Cleaner HQ from training with Zanka, nearly knocking Enjin over.
"Mom, dad, guess what!" he exclaimed, waving his gloved hands.
Both you and Enjin froze.