"Scary Grass Magic Once You Understand the Meaning"

I was reincarnated in another world as a grass mage at the very bottom of the hierarchy. I've been oppressed, had my engagement broken off, and dealt with all sorts of things, but I'm doing fine! My ex-fiancé told me to do something about a curse, but I haven't done anything? A story that begins with that—a tale of "the pheasant would not have been shot if it hadn't cried," so to speak. A continuation of "Grass magic and other things that are actually terrifying."