A cikin labarin tatsuniya, aljanin sarki Leonis ya rufe kansa har tsawon shekaru 1,000 don shirya don yaƙin ƙarshe, amma da ya farka, sai ya tsinci kansa a cikin jikin wani yaro ɗan shekara 10. Wata kyakkyawar budurwa mai suna Lisellia daga makarantar Holy Sword Academy ta ce masa, “Me ya sa aka kulle ku a cikin irin wannan wurin? Babu matsala yanzu, wannan babbar 'yar uwar zata kula da ku! ” A karkashin kulawar Lisellia, Leonis ya yi mamakin ganin cewa duniya ta canza gaba ɗaya. Cikin rikicewa da rikicewa, Leonis ya sami kansa yana yin rajista a makarantar Holy Sword Academy.
