Breakdown of kono suupu wa nurui node, mou ichido atatameta hou ga ii.
Questions & Answers about kono suupu wa nurui node, mou ichido atatameta hou ga ii.
は marks スープ as the topic of the sentence: as for this soup...
So the sentence is framed as a comment about the soup. It is not marking the direct object. The basic feeling is:
- このスープは = as for this soup
- ぬるいので... = since it is lukewarm...
It can also carry a slight contrastive nuance depending on context, as in this soup is lukewarm, maybe unlike something else.
