his bio is in the journal but the tl;dr is he is a changeling who grew up focused on bringing down the corporation who killed his mother while he watched. he's very o'ren ishii from kill bill. well, he found purpose in the beguiled until he commented to a mark that he would leave her, just to swindle the mark. well, in turn, he got swindled by the beguiled and left him to get arrested for not only murder but also several million dollars in stolen goods. he was locked away in the crypt until the clone wars started and the prison was destroyed. now on the run, nico wants to continue his john wick-esque vendetta against the corporation and get back at the truest love he's ever known - the beguiled. his premade says that the crime boss and scientist will help him get there