Deep in the fearsome Calypto sea, the Xagias (crime syndicates owned by the Venomous Calypto Cecaelia) is one of many dangers you'd find. Normourt is but one of many of them, though rather infamous. It isn't super unusual for a xagia to be veiled in mystery, but not a lot about Normourt's leader(s) is known. Unbeknownst to most in the Xagia infested area, the Leader of xagia Normourt is not in fact a calypto cecaelia, but an immigrated cecaelia.

Nexus is the man who started the Normourt and will see it til it's end most likely. To people outside his closest circle, he is but a rare rumour or named by the title N. or Mr. N. Nexus built his fortress-like mansion up, just like his career as a criminal. Despite having challenges, like being a foreigner and insisting on having legs underwater, his manipulative behaviour and persistance more than carries his ideas and wants into fruition. He knows how to connect with the right people and loves being faced with challanges.

Nexus doesn't care much for talking about his own past or himself in general, in part because he doesn't find it to be anything noteworthy, but also because he rarely sees reason to share an information about himself. He's the son of Mr. and Mrs. Kenton, who used to be well-seen political figures in Mattingclam. They also had a scared secret identity of The Red-eyed Ribbon Eel, a uncatchable thief that was roaming in Mattingclam coincidentally during their time there.
Wanting to protect their base, secrets and thieving goods, they sought to build up a defense. Both of them had powers that neutralizing magic and so they figured they might as well try their chances at getting a child together and hope that said magic was stronger. And for that porpose, Nexus was born, a child born form convenience for the explicit purpose of being used as a tool. Once Nexus arrived into this world, he was given a room in the basement of the home, never introduced to the real world around him. His parents kept him there, raising him surprisingly well. Mr. and Mrs. Kenton taught him about the world outside, politics, psychology, anatomy, killing, disguising yourself and much much more. Really, they quite knowingly taught Nexus how to be able to kill, despite there being no need for that in their own plan. Nexus is well aware though that they did consider he might not stay there as their barrier keeper forever. His parents would reason these actions with the fact that they brought Nexus into this world on their own and then raised him, meant he was indebted to them. Some other cecaelias had it much worse, having to fend for themselves after a year or two. They would pour their knowledge into Nexus, very openly giving him the mental tools so that he could one day have a chance of stopping them if he wanted. In return, as long as he was the weaker party, they could basically do whatever they wanted. It was simply survival of the fittests, except they had been generous enough to not just take advantage of their clear superiority. Nexus still to this day thinks that's a pretty reasonable, trade all things considered.
With limited social contact and long stretched of time on his own, Nexus gradually grew an intense boredom. An insatiable hunger for anything exciting. It drove him mad sitting in his own mind for so much time, just thinking over the information he knew. It wasn't that he disliked what he had learnt, but he wanted more. More of everything, more of the outside. And the thing between that and himself was his parents, so obviously they had to go. It was either them or him. Mr. and Mrs. Kenton became his first murder victims, very thought-out, though pretty simple execution. Rules are rules, he was powerful enough now and had a drive for life. The winner makes the rules.
Nexus stole most of their valueable stolen goods, not out of any feelings of revenge or wanting a memento of them. Instead it was to help kickstart his new life. He'd find a good challenge, something that could keep his mind distracted from the looming boredom. The solution he settled on was to settled in the infamous Calypto ocean and build a Xagia with a handful of carefully selected people for the job. This. This was it! He was having fun for years with establishing his web of crime and getting aqquainted with a lot of useful people. Scheming and manipulating his way forth - oh, there was a real value to all the lessons he had been taught relentlessly. How stupid of his parents to give that information away - they really were overly skilled for the types of jobs they wanted to do.
His life's excitement had yet to peak, but it surely continued to get better. Upon one random trip to the surface, he met his most entertaining project to date; Damon. When he initially met Damon on a beach, he was just having fun conversing with a dying man. Nothign out of the norm for Nexus. Damon's lack of will to live reminded Nexus of his own fear of being bored and so he gave him his personal advice. It turned out that the man he saved was a very, very loyal kind of human and bemused Nexus gave in to his intense want to gift the rest of his life to Nexus. He figured it would be fun to watch him inevitably regret it, when Nexus would offer the worst poison he owned, his own ink. If Damon wanted to give him the rest of his life for Nexus, then he'd have then that meant also being ready to die any time, so it seemed fitting. In part, it was also common Xagia test of loyalty, though Venomous calypto cecaelia were actually less painful to digest. He had definitely not expected a human like Damon to stubbornly survive through it and swear eternal loyalty to him. But he did, very much to Nexus' surprise. Well, a deal is a deal. Intrigued by him, Nexus kept his words, interested in knowing more about Damon. Damon quickly developted from a fun side project to most of Nexus' attention, as he found it fun watching Damon adjust to his surroundings. Eventually, he figured, eventually he had to get bored of Damon. But alas, he kept being invested in watching Damon slowly grow and change.
It used to be that Damon was his hobby and crime was his work but eight years has gone by and now Damon feels more like his main work whereas crime is a casual hobby. Nexus isn't really bad about that, he never cared if he did good or bad, as long as it was interesting, so the fact that he is doing less harm to others isn't something that bothers him.