Jinruishoku

"You just die one day and turn into a mummy!" Mysterious mummified corpses that people have nicknamed "Mummily-sans" keep being found one after another, causing a lot of fuss. One day, a boy named Seita notices that his friend is acting strangely...?! Don't miss this thrilling suspense story about an invasion by the unknown!

(Source: MANGA Plus)

Jinruishoku was published digitally as an English simulpub as Jinrui-Shoku: Blight of Man through MANGA Plus.