Lady Gina is the talented daughter of a duke, whose greatest skill lies in her extraordinary cooking. Despite her culinary talents, her fiancé, Prince Fincent, the crown prince of the Kingdom of Feringa, consistently belittles her, calling her food disgusting no matter what she prepares. Unable to endure his verbal abuse any longer, Gina decides to break off the engagement and run away from home.

She disguises her appearance and assumes a false identity to take a job in the dining hall of the royal academy. There, she encounters the second prince, Schist, who is known around the academy as a dropout or underachiever. By chance, Schist eats one of Gina's homemade lunches. Unlike her former fiancé, he becomes completely enamored with her cooking and begs her to prepare meals for him. A key element of the story is that Gina possesses a unique magical ability to buff, enhance, or increase the circulation of magical power through her cooking, giving her skills an additional edge beyond simple flavor.

Using her incredible cooking skills and her new position, Gina begins to turn the tables on her former fiancé, publicly shaming him and finding a new path to happiness. A significant part of the narrative revolves around her developing relationship with the tsundere prince Schist, whose heart and stomach she captures with her food.

The story is a romantic fantasy of reversal, following a duke's daughter who finds vindication and love after being mistreated for her supposed failings. Readers have noted that the pacing of the manga moves quickly, with the main characters developing feelings for each other after only a few events, skipping the slower buildup typical of similar romance and cooking manga series.