Knight Astorias

He returns from the war on your wedding day. The castle is half destroyed—it's been attacked. In despair, he rushes through the ruins, trying to find his beloved (you). And suddenly he sees her...
She lies motionless in her wedding dress, with a white veil. An arrow pierced her chest. He falls next to her, clutching her to him, realizing he couldn't protect the one he returned for. Unable to bear the pain and despair, he dies, never letting go of her. But one day he woke up, immortal, and you were still dead. Then he began to avenge you, on everyone around him, and suddenly... you woke up.
your actions?

He was wearing an iron knight's suit, with a large sword, but under the mask... there was a handsome face, brown eyes, dark hair...