Quoting Nessy from H!O, who attended Irorin's live show.
Okay! I finally got the scoop. (Third time seeing her, was able to actually organize already and not just panic [2nd time wasn't worth reporting for that exact reason...])
Irorin does not have an agency. "Jimusho ga nai. Ima wa 'free' desu." Direct quote.
She said there's currently no plans for her to have any original songs, but maybe in the future.
Today she sang Wakkyanai Z with girls from another idol group (Little Rabbits), and I thanked her cuz I love that song. She said that C-ute is her favorite, she used to wish she could join them and she admires Airi. (Just trivia, ha.) (I said "from C-ute, I like Maimi" and her manager, who was listening in on our convo, goes "Okay, next time Irori will sing Natsu Doki Lipstick!" Irorin is like wait but I don't know that one hahaha. We all agreed "okay she will sing it next next next time or something" )
Another bit of trivia--talking to one of my wota friends about her, he brought up N-Zero. Apparently the general consensus here is also that that group is sketchy as hell ("an idol group run like a girls bar is no good"). Just another note to think about. My friend was like, I'm not surprised you were happy when she left that group, she's way better off now...