ES Eternal Sabbath: Volume 4 (Manga)

 Brothers in Hate

Isaac and Shuro are the products of a mysterious genetic-engineering experiment. Dr. Mine Kujyou, a scientist researching this dangerous subject, knows that they were created with the superhuman ability to control people's minds, and that Isaac has been using his powers to commit a series of strange and brutal murders. But the brilliant doctor's analytical skills are truly being tested, for Mine cannot understand why Shuro, Isaac's clone, has promised to help her save humankind from Isaac. All she knows is that Shuro's anger is pushing him toward a showdown with Isaac that only one of them can survive.