>>81191530She had 0 support there while having to work for many hours and, IIRC, it was revealed that Yumenographia managers were groomers fucking their designated girls. In a good ole classic Riku move, instead of cleaning that shit up and make it better, he closed the branch and it was mainly because of a legal issue where Yumenographia was legally considered a cabaret and therefore he needed to pay for some licenses and paperwork.
Some rrats with weak foundations do mention that Muumi was originally an initial NijiEN manager given that she's a purely bilingual japanese girl with great personal managerial skills but that Nasa convinced her to leave for Phase. I don't believe it but I think it would be extremely funny if Nasa was the cause for NijiEN to fall into the dogshit state it currently is.