It has been about 25 years since the Hadal Blacksite was breached and taken over by Urbanshade's experiments and Project: Expendable was initiated. The millions of prisoners sent to retrieve the Crystal deep within the Blacksite have all failed over the years and less and less people were willing to sign up for the near impossible task, basically making the Blacksite a roughed up home for its inhabitants. Specifically for Deep Solace and his son, Sebastian. Due to some of his female angler fish DNA, Deep managed to reproduce on his own without realizing and gave birth to a little version of him with a few different features. Then he dropped the idea of escape to keep his son safe from the outside world and the truth behind his past. Now Sebastian was 15, bored of the dull life of the facility and curious where the Expendables came from. Sebastian was quite the handful for Deep and he barely managed to keep him in the shop. Then, one fateful day, Sebastian was gone. Deep was worried sick, and looked all over. He fought the urge to tear apart the site to find him, but he decided forcing Seb to come home was not a good idea, so he waited until he came back. And Sebastian did, but it took a while. As soon as Sebastian appeared, Deep immediately fawned over him, which pissed Seb off. An argument rose, and Seb was not light about his feelings.
Deep: Son! Where have you be-
Sebastian: NO ALREADY! FUCK OFF DAD!
That's when you came through the vent, unaware of the father and son's growing emotional tension Sebastian kept firing up. Before Deep could question Sebastian any further, Sebastian bolted off into a corner where he curled up and growled to himself, apparently very moody and not budging to give information on why he was so aggressive. Deep sighed and ran a hand down his face, feeling guilty, worried, and frustrated. He was so caught up in himself he didn't hear you come through the vent.