Found by the Demons at the Beginning

The protagonist has gone through many hardships to become a strong man, and gets clues about his mother from the demon clan. His mother is possessed by demons and has no choice but to sacrifice his mother. The mother leaves clues, and the protagonist goes to find his father. His father is too ruthless, and the protagonist leaves. Heaven learns that the protagonist is an alien and is wanted by the Emperor of Heaven. He later learns the truth about his life experience. After the incident is exposed, his father is arrested. The protagonist rescues his father and fights with the Emperor of Heaven...