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 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?

Chihaya appears to have recovered from her bad start, but Megumu will not let her take consecutive cards. As the players spur on their aces, both sides begin to pull together as teams. Which team will prove to be stronger?

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.

Tsukuba finally gets his chance to play due to Kana's injury, but will he be able to keep his composure in such an important match? Meanwhile, the team members of Fujisaki are waiting to see what player Coach Sakurazawa will switch for the final match.

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.

A new found passion has brought Misuzawa back into the fight, as Chihaya herself tries to fight through the pain of her injury.

The Mizusawa karuta club has won the team championship, becoming the number one team in Japan. The players reflect upon the path they took to the championship. After Chihaya remembers the pain in her finger, she is taken to the hospital.