Mndandandawu umachitika patatha zaka zinayi zitachitika za Magical Girl Lyrical Nanoha StrikerS, pomwe msungwana wamatsenga Nanoha Takamachi adapulumutsa ndikumutenga mtsikana wina wotchedwa Vivio, yemwe ndi wobadwanso mwatsopano wa Sankt Kaiser, Olivie Segbrecht. Atalowa mchaka chake chachinayi cha sukulu ya pulayimale, Vivio amapatsidwa chida chake chanzeru, Sacred Heart, ndipo amapeza mphamvu zosintha pogwiritsa ntchito Sankt Kaiser mode wamkulu. Posakhalitsa amakumana ndi mtsikana wotchedwa Einhart Stratos yemwe, mofanana ndi Vivio, ndi mbadwa ya wolamulira wina wa Sankt Kaiser, a Claus GS Ingvalt. Pomwe Einhart atsimikiza mtima kuti njira yake yomenyera nkhondo ndiyamphamvu kwambiri, Vivio amacheza naye ndipo, pamodzi ndi abwenzi ake, amalowa nawo masewera ampikisano komwe amalimbana ndi otsutsana nawo amatsenga osiyanasiyana ndikuphunzira zambiri za moyo wawo wakale.
