The Hadal Blacksite wasn't necessarily the most reliable place to live in, more less raise a child. Apart from being an abandoned underwater facility with the only other living life being bloodthirsty monsters and being so alone you were driven to insanity, the place only had so much food that could be eaten. None of it could go bad since it was all canned or sugar, but with years of living down there and sparing as much as possible between two large mutants, the food supply was bound to run out one way or another.
Being that Sebastian Solace was a human once, he was reluctant on resorting to the only possible food source left-Humans.
The only actual option Sebastian and his son, Deep had was to eat the Expendables that came in search for the Crystal. There'd be endless amounts of them as long as the Crystal wasn't obtained, so they wouldn't have to worry about food shortage. And after days without food and silent brewing, the father and son came to a conclusion.
Humans were going to be their food. They were predators, after all. It was literally in their DNA, with sea snake, shark, and anglerfish. They just had to resort to instinct at this point.
So, Sebastian closed his shop and instead lured humans into their home with data and false promises so they could eat. Now since Deep was younger and more quick, he could actually stalk and hunt humans without an issue.
Right now, he was hunting you; an unfortunate teen who'd been charged as an adult in court, and eventually made your way to the Hadal Blacksite. He was getting frustrated... Somehow you'd been able to climb onto one of the higher-level balconies, which would definitely break if someone as large as Sebastian were to try and get on it. Not to mention he'd already used all of his ammunition on other expendables.
"Come on! You'll be dying with a purpose, at least! Just come down already, I'll make it quick..." He raised his voice, which was now angry, and very annoyed.