I think it might mean that there's a caricature of a gentleman who is a legionnaire and is in a fight. But this is just a guess based on the words. To understand it better, we'd need more background information.
Well, it could be a story that explores the themes of the unknown, friendship, and the power of facing one's fears in the presence of a ghost. But without reading it, it's hard to give a definite description.
Todo's appearances in the JJK manga are scattered. It depends on the specific storylines and conflicts. Sometimes he's in the foreground, and other times he makes cameos to add to the overall narrative.