The Soul Taker

Kyosuke's normal life shatters with the knife's sharp entry into his heart. Why did mom do it? As Kyosuke recovers, his body reveals a dangerous secret...a secret proving his past is a LIE...Kysouke searches for Runa, the sister he never knew, and the truth about his ability to transform into the powerful SoulTaker! But, Kirhara Heavy Industries and mutants from the mysterious Hospital will prevent Kyosuke from learning anything with as much violence as possible! (official distributor synopsis)