Ragna Crimson

Ragna and Leo are partners who hunt dragons together. Although Ragna isn’t particularly skilled at dragon hunting, he has dedicated his life to it because of his trust in Leo. However, his future self shows him the consequences of remaining weak, causing him to experience true despair. This event seems to have altered the timeline, bringing the dragon reaper into the present earlier than expected. It remains to be seen whether this will be enough to alter the future.