Nykken's Toxic Super Beasts Manga Ends with 4th Volume
Manga launched in 2022
Titan Manga licensed the manga and will release the first volume on April 15 next year (originally announced for release on March 25). Titan Manga describes the story: The manga launched on Kadokawa's Young Ace Up manga website in March 2022. Kadokawa published the manga's first volume in October 2022, and the third volume on December 4.Source: Kadokawa