The live-action manga and anime adaptations that the Japanese movie industry has been churning out recently don’t look all that cool.
It certainly seems like a live-action version would work well, because it doesn’t have to contend with iconic costumes (or hair!) in the same way other manga movie adaptations do.
Ajin debuted as a manga in 2012, telling the story of a new type of human, called “Ajin,” that are unable to die.