Manga creator Yūya Takano announced in their Twitter account that the Mamono-tachi wa Katazuke Rarenai (These Monsters Can't Clean Up) manga will end with the 25th chapter on May 18.

The manga centers on Clara, a nun offered as a sacrifice to appease a dragon in her region. When she sees the run-down state of the dragon's lair, she asks as her final wish to die in a clean place. Temporarily spared from the dragon's wrath, she begins to tidy up the dragon's lair and teach the dragon the value of keeping a home clean.

The manga launched in Square Enix's Gangan Online website in July 2018. Square Enix published the manga's third compiled book volume last October.

https://www.animenewsnetwork.com/news/2020-04-21/mamono-tachi-wa-katazuke-rarenai-manga-ends-on-may-18/.158792