So I was bit intrigued on why suddenly Seffyna had some goods available.
https://twitter.com/nijisanji_app/status/1554399134454628352So while I was looking at her merch I just saw that it was being made from pixiv factory. And pixiv factory has public prices so we can now compute the minimum profit that Anycolor gets on merch as they might have discounts when merch is bought in a large amount.
For example: Seffyna has this tote bag for sale at 3500 yen
https://nijisanji.booth.pm/items/4029709Pixivfactory has that style of tote bag for 1730 yen
https://factory.pixiv.net/products/tote_bagleaving a minimum profit of 1770 yen to be split between Seffyna and Anycolor.
This is also the cause of why their standard b-day merch is through booth and not
https://shop.nijisanji.jp/ as those items are also produced by Pixivfactory. You can see the pixivfactory message after the prices. for example on chigusa's bday merch
https://nijisanji.booth.pm/items/3988567 