It was supposed to be a safe voyage to the destination as it only involved moving the ship, but what awaited the girls are numerous challenges. After overcoming the numerous difficulties such as the sudden fire from the instructorship, battle with the berserk students of other ships and performing rescue action from an SOS, they return back to land with their relationship becoming much stronger.

One month after that incident, a new pinch visited the members of Harekaze while they enjoyed themselves after the exam. That trouble is the disband of Harekaze class. The Harekaze members, while being nervous, become one again to stop the disbandment of the class which leads to a stronger bond.

Then, three months after the disbandment of the Harekaze class──
In Yokosuka, the students from all the Girl’s Marine High School (including Kurem, Maizuru, and Sasebo) come together to hold a cultural and sports festival called “Competing Game Gathering.” Akeno and the other Harukaze members are busy preparing the welcome party. The large battleship class which is Yamato, Shinano, Kii, and others were also gathered. A new “pinch” is closing in on the girls while they are in the midst of the performance and competition…