Dear ex-fiance, I don’t care about you, you abandoned me

Fine, the daughter of a marquis, only possesses the unimpressive skill of being able to “hear the voice of the soil,” but she is raised strictly in order to marry Banagher, the eldest son of the prestigious Duke of Diner.

One day, her younger sister, Reina, is certified with the rare plant-growing skill “Green Hand.” Green Hand is a highly valued skill that promotes crop growth and brings about bountiful harvests, and Reina becomes the object of adoration from those around her.
Since childhood, Reina has disliked Fine for being compared to her talented older sister, so she plots to steal her fiance. Banagher goes along with the plan.

As a result, Fine is locked in the break room at a ball she attends with a stranger – Hawk – and is accused of infidelity, leading to the engagement being broken off.
And then, Banagher has a younger sister …