Clevatess: Majū no Ō to Akago to Shikabane no Yūsha (クレバテス−魔獣の王と赤子と屍の勇者−, Kurebatesu: Majū no Ō to Akago to Shikabane no Yūsha, "Clevatess: The King of Magical Beasts, the Baby, and the Corpse Hero") is a Japanese manga series written and illustrated by Yūji Iwahara.

An anime television series adaptation produced by Lay-duce is set to premiere in July 2025.

Written and illustrated by Yūji Iwahara, Clevatess started on the Line Manga digital platform on August 12, 2020; the first collected tankōbon volume was published on the same day.

[7] The manga has also been published on Media Factory's Comic Alive+ website since April 24, 2024.

The series is produced by Lay-duce and directed by Kiyotaka Taguchi, with Keigo Koyanagi writing series scripts, Souichirou Sako designing the characters, and Nobuaki Nobusawa composing the music.