Shinji and Sousuke have dragged Kaname, Kyouko, and Mizuki to the Narashino Ground Self-Defense Force Post Festival. Alas, Kaname's dreams of swimming, beaches, and summer romance have been dashed once again. Sousuke meets Shinji's father, who is the ranking Secretary at the base. Shinji seems embarrassed, but Sousuke's his usual military-minded self. Elsewhere, the girls are getting hit on by one of the soldiers from Nerima who came to compete in the AS competition against Narashino. Apparently Narashino's AS unit is a joke, lacking any decent combat skills, and Nerima has defeated them soundly every year. Kaname turns the pilot's offer to go AS down, and Mizuki rages over the fact he didn't even notice her. The gang watches from the crowd as Narashino gets creamed by Narima time and time again. Kazuma's getting really aggravated by this and Sousuke decides that he can't watch this folly any longer and intervenes personally. Kaname realizes Sousuke's the one intervening and runs down and whacks the costumed Sergeant upside the head. While Kaname is yelling at Sousuke, Mizuki runs down and starts rubbing up against him wanting to play "G. S." with him, but Kaname drags her off before she can take his mask off. Shinji's dad, impressed by the masked Sousuke's skill, begs Sousuke to take command of Narashino's troops to lead them to victory against Nerima. Shinji is infuriated his father would lower himself to begging and storms off. Elsewhere, Narima is recruiting Kaname to join them in the final battle with Narashino, and the match is set for the final showdown.