I’ve posted an afterword over on my activity-report page.
Also, serialization has begun on Isekai Guild Meals, starring Demon Lord Cornelia as the main heroine — please check it out as well.
Ouroboros appears briefly near the end there too, as her aide — the difference in her role is, I think, good for a laugh.
https://kakuyomu.jp/users/aratashiraishi/news/1177354055245803652