Chihayafuru

 Chihaya Ayase is a girl who has spent most of her life simply supporting her sister in her model career. That changes when she meets a boy named Arata Wataya, a talented karuta player who recognizes Chihaya's potential to become a great player herself. As Chihaya takes on a new dream of becoming Japan's best karuta player, she is soon separated from her karuta playing friends, Taichi Mashima and Arata Wataya, as they grow up. Now in high school, Chihaya still continues to play karuta in the hope that she will one day meet her friends again.

(Source: Chihayafuru Wikia)