Attack on Titan: Soul of the Knight.

Summary

Arthur, a 9-year-old boy, bravely fought off a pack of wolves to protect his friends but fell unconscious from severe injuries. Carl and Grisha rushed to his aid, shocked by the sight of Arthur surrounded by wolf corpses. They hurried him home for medical treatment, while his friends anxiously awaited news. As Grisha worked to save him, Arthur found himself in a mysterious palace, recalling memories of a royal lineage and a mission to restore his father's kingdom. A voice revealed his identity as Arthur Uther and bestowed upon him a powerful sword, urging him to grow stronger to confront the Death Knight, the enemy of his lineage.

Full content