Clevatess

"Clevates -The Demon King, the Infant, and the Corpse Hero-" is a Japanese manga by Yuji Iwahara. It has been serialized on LINE Manga (LINE Digital Frontier) in a vertical scrolling, full-color webtoon format since August 12, 2020. The collected volumes are recorded in a monochrome, horizontal format, and a new edition has been published by MF Comics Alive+ series (KADOKAWA) since July 2024.

Source: Wikipedia