another source: https://twitter.com/uminonaka0x0/status/1471359811359240195, but also bad id.
only traces left: https://web.archive.org/web/20211229112256/https://www.pixiv.net/en/artworks/95112715, https://web.archive.org/web/20220106194132/https://www.pixiv.net/en/artworks/95112715.
It should be noted that some pictures in this pixiv post have the same source as some twitter posts and have been posted to danbooru, but there are still some pictures that have not been posted to danbooru before. By chance, I still have all the pictures in this pixiv post, so I posted the missing pictures as the children of post #7829488.

All the child posts are unrelated images so this shouldn't really be set as the parent of them anyway (for future reference it was all of these posts pixiv:95112715)