As a child, Chihaya Ayase had only one dream: to see her elder sister Chitose become Japan's most successful model. However, upon defending her ostracised classmate Arata Wataya from his bully—Chihaya's childhood friend Taichi Mashima—she discovers the world of competitive karuta and soon becomes enamoured with the sport. Based on the Ogura Hundred Poets anthology, this card game where poems are studied requires excellent memory, agility, and a tremendous endurance from the players. Full of hope, Chihaya joins the Shiranami Society together with the newly reconciled Arata and Taichi, embarking on an exciting journey for the title awarded to the top-ranked female player—Queen of Karuta. Since middle school, Chihaya grew distant from a dispassionate Taichi and separated from Arata. However, in order to improve her skills, Chihaya decides to create a karuta club in her high school. With the help of Taichi, another veteran player, and a few spirited newcomers, Chihaya's new-founded Mizusawa Karuta Club aims for victory in the Omi Shrine's national championship. Chihaya Ayase, a strong-willed and tomboyish girl, grows up under the shadow of her older sister. With no dreams of her own, she is contented with her share in life till she meets Arata Wataya. The quiet transfer student in her elementary class introduces her to competitive karuta, a physically and mentally demanding card game inspired by the classic Japanese anthology of Hundred Poets. Captivated by Arata's passion for the game and inspired by the possibility of becoming the best in Japan, Chihaya quickly falls in love with the world of karuta. Along with the prodigy Arata and her haughty but hard-working friend Taichi Mashima, she joins the local Shiranami Society. The trio spends their idyllic childhood days playing together, until circumstances split them up.