D.Gray-man (2006 Anime Series)

In a world where darkness looms, Allen Walker, a young and fiercely determined exorcist, embarks on a perilous journey to protect humanity from the evil Akuma. These malevolent spirits feed on human suffering, and their master, the enigmatic Millennium Earl, will stop at nothing to bring about a catastrophic era of darkness. Alongside his mentor, General Cross, and his fellow comrades, Allen must confront the shadows within and without, testing the limits of his courage, compassion, and unwavering dedication to vanquish the forces of evil.