Petrichor

pet·ri·chor
/ˈpeˌtrīkôr/

noun
a pleasant smell that frequently accompanies the first rain after a long period of warm, dry weather.
"other than the petrichor emanating from the rapidly drying grass, there was not a trace of evidence that it had rained at all"

Marinette starts developing feelings for Chat Noir after deciding once and for all to get over her crush, Adrien Agreste. (my first story, just for fun!)

(Petrichor references the smell of rain after the iconic umbrella scene)