Kidou Senshi SD Gundam no Gyakushuu

Char and Haman organize a school festival to mark the merger of the Nu School for Boys and the Zeta School for Girls. The event is disrupted by the arrival of the Counterattack School group, including Amuro, Judau, and Kamille, who attempt to sabotage the celebration. The second part of the story is titled "The Tale of the SD Warring States: The Chapter of the Violent Final Sky Castle."