YAB
>tldr: "company Y" (they are afraid of stating the name) pays much less than Cover (only one namedropped), and also refuses to pay(or even accept? not clear here) any revisions.12/27/24(Fri)
https://news.yahoo.co.jp/articles/8208b63d8227da7b23878f70c1188dd7ae0f0d0d?page=4"Everyone wants to know the going rate, so creators often talk to each other about how much they're currently accepting. Stories about Company Y being too cheap come up often. For similar projects, the difference between Cover and Company Y was several times."
"Until now in the otaku industry, even if a company ordered a low amount, it was common for them to be able to recoup some of the money through doujin activities afterwards. But the VTuber company (that I did business with) took the stance that even with doujin activities, 'don't do it if possible'. The copyrights have been purchased, so I can understand the thinking that it would reduce the company's share. However, if that's the case, it just leads to more dissatisfaction with the order amount."
Nijisanji is the only one of the three major companies that restricts the activities of parent artists, but they are being stingy in calling it Y Company. [thats according to the jap, but as far as i know, Brave Company/VSPO restricts any kind of porn of them even more]
In the case of YAB, other people have also been affected, and while they write in a way that invites unnecessary speculation, it is typical of KAI-YOU to try to control the damage in this way.