災伴 (Saiban)

The world as everyone knew it ended two years ago, when terrible creatures some now call Saiban appeared. Now, the last of humanity lives of the fringes of the rubble and ruin, trying to survive the monsters that have overtaken everything.

Orou, Hana, Enkai, Yohei, Haru, and Tameko are a group of six still breathing in Tokyo. However, when one of them is killed out in the chaos, splinters begin to form between them. Between the Saiban and their own disagreements, their future starts to look more and more bleak for the remaining five.