Well, without knowing the story, it could be that the red color of the boxer shorts is significant. Red is often associated with boldness or being noticeable. Maybe in the story, the character who wears the little red boxer shorts is trying to stand out or be different.
Well, El Cid has a basis in history. Rodrigo D铆az de Vivar was a real person, but the stories about him have likely incorporated fictional elements over time to make them more captivating.
If 'Shorts Cuts Novel' refers to short novels or short story collections, one characteristic could be their conciseness. They manage to tell a complete story in a relatively short space.
Perhaps the girl's shorts are made of a light, flowy fabric like linen. They are white with some pastel-colored embroidery around the edges, like little flowers. They look very summery and give the impression of a carefree, beach - going girl.