Unexpected sympathy from unlikely sources.
This is largely a comedy development, for a mild chuckle in the moment from the viewer. The example often given is two opposing sides, except one side is being so incompetent and pathetic that the other side sends over a representative: "hey, I know we're supposed to be fighting/competing, but, uh, are you guys okay over there?"
I've also seen it in a number of fantasy light novels, where a character (main or side) is visiting an orphanage for some reason or other, and the orphanage kids learn this rich-looking noble-like character has basically no friends, or has never heard of the setting's equivalent of Santa Claus. So the orphans collectively go "oof", then act kindly to the character, who is increasingly embarrassed at this show of pity.