EightwordsdescribethefeelingsofYoutarouHanabusa:"Ijustwanttoliveanormallife."Unfortunatelyforhim,asamemberoftheKnightsoftheWorld,histraininginthisancientandinternationalorderhaslefthimwithaconditionhecalls"WhiteKnightSyndrome."ThisconditioncausesYoutaroutoinstinctivelyactheroicallyandchivalrouslywheneverheencounterssomeoneindanger. Toprotecthisidentityinsuchembarrassingmoments,hecarriesamaskwithhimatalltimes.Thenoneday,hesavesthelifeofMakioKidouin,theyoungdaughterofaneliteandaffluentfamily.Littledoesheknowthatthissingularactofheroismwillchangehislifeforever.Soon,heissimultaneouslyblessedwithalifeinthelapofluxuryandcursedwithoneofabnormality,forhisnewfriendMakiolivesalifefarremovedfromtheeveryday. Betweencopingwiththehijinksofsix-year-oldMakio,anddealingwithacastofoddfriendsandschemingenemies,YoutaroumustprotecthisnewfriendwhilekeepinghisidentityhiddenasthemaskedheroKnightLancer.