あらすじ
“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!
あらすじはAniListより（英語）。
