The karuta club only needs one more member to become an official club. Chihaya and the other members continue working to recruit members, but they're having trouble finding anyone who's interested in joining. But then one day, Chihaya runs into Porky, her old opponent from back when she was in grade school. Porky is on the tennis team and he refuses to join the karuta club. However, Chihaya perceives that Porky still loves karuta, so she challenges him to a match.

The karuta club has become an official club. Chihaya announces that the five of them will make it to the national tournament. The beginners, Kana-chan and Desktomu-kun, are worried, but Chihaya shows no mercy. Chihaya is set on making a strong karuta team and aiming for the top. And so, they decided to hold a camp.

After qualifying for the national tournament, the Mizusawa karuta members attempt to bolster their weaknesses. Chihaya and Taichi practice with the Shiranami Society while Porky, Desktomu-kun and Kana-chan practice with the Suihoku Karuta Society. Chihaya is overwhelmed by the pressure of the national tournament, but then she receives support from an unexpected source.

Chihaya has recovered in time for the individual tournament. Players are grouped by their rank, and the youngest Queen in history, Wakamiya Shinobu, is in the Class A bracket, and Chihaya's second round opponent. Chihaya is overwhelmed by the Queen's ability and unable to take a single card. As she's about to give up, she remembers her first match against Arata back in grade school—

The national tournament has ended, and the members of Mizusawa's karuta club have established some individual goals. Taichi and Porky need to reach Class A. Kana-chan and Desktomu-kun need to start playing in tournaments. And Chihaya is practicing for the East qualifier. However, Dr. Harada suddenly tells Chihaya to stop taking cards with her speed, and she has to rethink how she plays karuta.

The Mizusawa karuta club is watching the Queen match and Master match at Taichi's home. The Queen has put on a great deal of weight, which makes it difficult for her to move as Yumi successfully takes cards away from her. Will the Queen be dethroned?

At the Shiranami Society, Taichi plays Tsuboguchi, who has graduated from college and is now a high school teacher.

The national championship has begun. Mizusawa High School's first opponent is a tam of foreigners from the Chiba International School of Information Studies. Chihaya is elated that karuta has become an international sport, but the other members are thrown off by the unfamiliar situation. Will Mizusawa High School be able to secure their first victory on their way to becoming number one in Japan? At the same time, Arata arrives at Omi Jingu alone.

Mizusawa's next opponent is a group of geniuses that has been sweeping the Karuta scene.

Mizusawa has finally made it to the first round of the High School Championship playoffs. However, Porky says that they should play without Desk-kun. After looking at Desk-kun's notebook, she agrees that they should leave him out of the lineup. Their opponent is Shoyo High school, representing Kyoto. Will Porky and Desk-kun be able to make peace?

In the second round of the playoffs, Mizusawa faces off against Akashi Girls First, led by Ousaka Megumu, the West representative in the previous Queen match qualifier. Chihaya falls behind off the bat as Megumu displays speed that she didn't have before. Will Chihaya be able to use all of her hard work to change the momentum?

Mizusawa and Akashi's match has reached the tipping point and each side starts winning games; the pressure between Chihaya and Megumu have captivated the crowd.

Fujisaka's training has proven to be a major hurdle to Mizusawa thanks to the training regimen demanded by their coach, Sakurazawa. Rion continues her lead over Chihaya thanks to her familiarity of the reader's voice. Doubts and injury plague Chihaya and her team as they fight to stay in the game.

Chihaya has advanced to the quarterfinals. Her opponent is the Queen, Wakamiya Shinobu. Chihaya decides to go all in and use her injured right hand. How will Shinobu respond? How will Chihaya fare?

Harada leads Suo with two wins and one loss as the Master match enters its fourth round. Harada has studied everything about Suo, including the weakness that Chihaya told him about, and he dominates the match with his trademark offensive karuta. Suo remains calm despite Harada's strong momentum, recalling what his aunt, who raised him, said to him when he was a child. Her words are the reason Suo continues to play karuta.