The Vampire Dies in No Time (manga)

The Vampire Dies in No Time (吸血鬼すぐ死ぬ, Kyūketsuki Sugu Shinu) is a Japanese manga series written and Illustrated by Itaru Bannoki. It's published in Akita Shoten's magazine Weekly Shounen Champion since 2015. It will be adapted into an anime series in 2021 by studio Madhouse.

Plot
Dralc is a vampire who is feared as he is rumored to be invincible. The vampire hunter Ronaldo goes to Dralc's castle after hearing that Dralc has kidnapped a child. But when Ronaldo arrives at the castle, he finds that Dralc keeps dying over every small thing and turning to dust. Dralc's true nature is that of the weakest vampire of them all.