For many years, the Republic of San Magnolia has been enjoying peaceful days under no threat at all from the neighboring Giadian Empire's Legion of autonomous drones. This is the story of Shin, Lena, and their friends living as normal students at the Eighty-Sixth Private High School, where they participate in club activities, a culture festival, a fireworks show, and more! With the grim battlefields of the original 86--EIGHTY-SIX nothing but a distant dream, our heroes can finally enjoy the fruits of youth and romance!