86—EIGHTY-SIX: OPERATION HIGH SCHOOL

The Republic of San Magnolia is enjoying peaceful days, having not been invaded by the neighboring empire's Legion weapons. This is the story of Shin, Lena, and their friends as normal students attending Eighty-Six Private High School, where they'll partake in club activities, the culture festival, a fireworks festival, and more! A story of heartwarming romance and glorious youth that could never have happened in the original 86 unfolds! (Source: Yen Press) — Description from AniList community (anilist.co).