SoulTaker

Kyousuke Date comes home one night and finds his mother dying in a pool of her own blood. In her final moments, she stabs him in the chest. After a swift recovery, Kyousuke searches for answers regarding his mother's motives, but finds more than he bargained for when he is attacked by two rival organizations: the Hospital and the Kirihara Group. Kyousuke is surprised to discover that he has a twin sister named Runa, and both groups try to coerce information out of him about her despite his ignor