Are these side stories worth reading?

Personally I don’t think they were really worth it, there’s no character development, Sehyuk is still just dragging Hamin around which kinda annoyed me but there are some steamy scenes if u wanted to read it for that, there’s no real conclusion by side 12 and I don’t know if that’s the end of the side chaps so just be aware it may be a disappointing/lacklustre ending to the story