Chihayafuru Plus: Kimi ga Tame

Ritsu Nagara is a new first-year member of the Mizusawa High School karuta club. For some reason, Ritsu is aiming to win the national championship, but after Chihaya and her friends graduate, the Mizusawa Karuta Club has only one A-class player, and he has a difficult time ahead of him... The story depicts Ritsu's growth along with his eccentric friend Akino and the other members of the club who are dedicated to playing karuta.
(Source: Natalie.mu)