Mysterious Nirei

I sometimes wonder how or where Nirei gets all of his information from, sure he asks questions and all that but we’ve never seen him interac with the other characters (like people from Shishitore) before yet he somehow knew about them.

Like when Sakura asked Nirei something in Suo’s fight, to which Nirei thought that Sakura was talking about Kanuma and actually had information on him. How and where the hell did he get those?

Secret organization Nirei? 🤔

I wish we could get more information of Nirei’s backstory, and if you think about it Nirei’s actually pretty dangerous in his own way because of all the information he has.