The story takes place during a conflict between the Krakozhia Dukedom and the Grania Republic. In the midst of the fighting, a savior appears to the Krakozhia Dukedom, and it is a high school student named Yano Souhei. Two female soldiers, First Lieutenant Ruto and Second Lieutenant Haruka, appear in tanks to intrude on Souhei's everyday life, followed by the enemy soldier Shachirofu, all of whom use firearms without hesitation at his house. (Source: ANN)

Following a catastrophic war against a race of giants known as the Zentradi, humanity has escaped towards the center of the galaxy aboard a fleet of colonial vessels called the Macross Frontier. As the extraterrestrial threat is left further and further behind, life on Macross Frontier proceeds as usual. In the year 2059, a young mecha pilot trainee named Alto Saotome and his colleagues are preparing to perform an accompanying routine for the famous singer Sheryl Nome, who has come to Macross Frontier for a concert. During the performance, a biomechanical alien species known as the Vajra make a sudden appearance, breaking through the defensive perimeter surrounding the vessel and crash-landing near the concert venue, plunging the entire city into chaos. As the concertgoers evacuate, a young girl named Ranka Lee is left behind and gets targeted by the Vajra, but she is saved at the last minute by Alto. Following these events, the Strategic Military Services program notes Alto's skill in battle, resulting in his recruitment to combat the new alien threat. [Written by MAL Rewrite]

Due to the violence portrayed in the Cowboy Bebop world and violence in Japanese schools, the series was briefly cancelled and an extra session was created as a final episode to the first thirteen episodes aired. Called "Session XX: Mish-Mash Blues," a compilation of clips from previous episodes, it aired on June 26, 1998 on TV Tokyo. The episode was never released on DVD. In it, the characters provide a philosophical commentary and end with the words: This Is Not The End. You Will See The Real "Cowboy Bebop" Someday!

With the start of the Chopin piano competition, Kai Ichinose, Shuuhei Amamiya, and many other hopeful musicians from around the world strive to reach the top. The stakes have never been higher, and the judges are rigorous when it comes to selecting the winner out of the plethora of talented pianists. This competition is so harsh that even famous prodigies can be easily eliminated. Some play for the money, some play to fulfill their duty to their families, and yet others play for their music to be heard. However, the only one who can reach the top is the one who embodies the spirit of the music Frédéric Chopin crafted for future generations. With the stakes higher than ever before, rivalries, friendships, and family ties will be tested, and each pianist will find their own sound. [Written by MAL Rewrite]