This is the story of a female college student who was invited to visit the home of her friend from high school...

The much awaited day of Interhigh preliminaries has come. Karasuno's first match is against Tokonami High School. Sawamura battles against a former teammate in junior high, Ikejiri. The tournament is now official; one loss and you're out of the running. It's time for Karasuno's revival. Onward to the battle!

Having qualified for on-the-job training, Naoto is assigned to K4, the Tokyo Central Railway Security 4th Guard Team. Waiting for him there are his partners from JNR Central Academy: Aoi, Haruka, and Sho. They immediately set about their work at Tokyo Station, but as if being teamed up with the gruff Aoi didn't worry him enough, Naoto is increasingly anxious as he watches the Tokyo Public Security Mobile Police set out on a mission.

Miwa is in a hurry to get to Aichi, but his path is blocked by one of the Quatre Knights... Philip Neve! Even though the two of them fight one another fiercely, Miwa seems to be overwhelmed by the size of Neve's burdens. What is the bitter, hidden past of Neve, the steel warrior?!

Tatsuya is asked to compete in Monolith Code. He picks Leonhard and Mikihiko to be his team members. Kichijoji advises Ichijo to figure out a way to force Tatsuya into head-to-head combat to win Monolith Code. Will Tatsuya take the bait as expected?