Arago

Arago (アラゴ, Arago) is a Japanese manga series written and illustrated by ARAI Takahiro.

Plot
The story centers around twin brothers, Arago and Ewan, whose parents were slaughtered by monsters. Years later, the vengeful Arago crosses paths with Ewan, who has since become a police officer, just as blood begins to flow again in the streets of London.