I Recall How My Own Efforts Were in Vain
Suō and Shinobu speak before Suō leaves. Suō says nothing keeps him going, which angers Shinbou, as if "nothing" makes him that good. Chihaya is depressed on the school trip, even when her friend Michiru takes their group to a museum on the Hundred Poets. Chihaya is checking her phone for updates on Taichi and Arata's progress in the tournament. Annoyed, Michiru takes the battery. She said she wanted to come on the class trip but she's not here at all. Chihaya apologizes and focuses on having fun with her classmates. Taichi meanwhile, struggles against Shusaku Koshikawa, a rising Karuta player.
Aired 04/12/2019EP 9 - I Recall How My Own Efforts Were in Vain

Chihayafuru 3
They may have just won their most coveted karuta tournament, but members of the Mizusawa karuta team still have a long way to go. Each member chases their dreams, and with a win under their collective belt, those dreams are closer in reach than ever. Chihaya Ayase is determined to challenge Wakamiya Shinobu and win the title of Queen, and Taichi Mashima is ready to take on Arata Wataya now that he’s made it into the most elite of karuta players — but an unexpected revelation will deal these karuta players a hand none of them saw coming.
(Source: Sentai Filmworks)