Chihaya chooses to go on her class trip in hopes to come closer to fulfilling her dream of being a teacher, but she spends the entire time lost in space, wondering how Taichi is doing at the Master tournament qualifiers. Harada and Inokuma are also participating in the East Japan qualifiers, but as Taichi tries to quietly psych himself up, someone unexpected shows up to get in his way. Meanwhile, at the West Japan qualifiers, Master Suo makes a surprising comment to Arata.

The veteran players Dr. Harada and Inokuma were the winners in the first round, but Dr. Harada chose to yield the second round to preserve his strength for the third. Arata starts to feel sucked into Dr. Harada's pace, but after receiving some advice from Chihaya, he remembers how his grandpa, the Eternal Master, used to play. Both of them enter the third round with one win and one loss as the battle to determine who will challenge the Master begins!

Chihaya is still lost in the clouds after Arata confessed his feelings to her, making her unable to concentrate on studying for her exams. Kanade and Sumire, who happened to overhear Arata's confession, are debating whether they should tell Taichi or not. In the midst of all this, Chihaya gets a phone call from Sudo, who says someone in his college karuta club wants to play a match with her.

Both the Master and Queen matches come down to luck of the draw in an intense first round, ending in wins for Shinobu and Harada. Shinobu is shaken after learning that her grandmother, a politician, sees her as no more than a walking advertisement, as well as the fact that Chihaya chose her class trip over a chance to play in the Queen match, and she begins to break down in the second round.

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.

Suo had been controlling the number of cards taken in the Master match, but with one win and two losses in the fourth round, Harada's momentum stops his plan in its tracks by coming down to luck of the draw. Harada shows his tenacity as someone who has loved karuta and worked to become the Master more than anyone else, but Suo still manages to keep his cool. The Master match finally nears its conclusion.