Rent D. Gray Man (2006 - 2017)

D. Gray Man is a Japanese animated drama series about a young man who gets embroiled in a generation long conflict between good and evil. The series follows Allen Walker, a man with a mysterious power, the ability to turn his arm into a vicious claw, one that can destroy Akuma, dark machines designed to destroy all of humanity. He finds himself working for an organisation called the Black Order, a group intent on stopping the Akuma by finding a power source called The Heart, something that can decide this conflict once and for all.