简介：MantarocomesfromMusclePlanet.Hisfamilyhistoryisdedicatedtowrestling.Mantaro'sfather,SuguruMuscle(a.k.a.Kinnikuman/KingMuscle),hadenteredalmosteverytournamenttobecomeachampion.Butafter28yearsofpeace,theSeigiChoujins'(MuscleLeague)oldtimeenemiesregroupedandformedthedMp(DemonManufacturingPlant,althoughthisisnevermentionedintheEnglishdub.There,itissimplyreferredtoasDestruction,Mayhem&Pain)andcrashedlandedatMountFuji.(ThedMpareaparodyofthewrestlingfaction,thenWo.ThedMp'sT-shirtsarevirtuallyidenticalinbasicdesigntothoseofwhatarenowconsideredclassicnWoshirts:thelettersdMpinwhiteandsurroundedbyasinglelineformingawhitebox.)TimeandtheyearswithouteviltofighthavetakentheirtollontheoldMuscleLeague,whoareoverwhelmedbytheseyouthfulandwell-trainedfighters. Realizingthattheyhavelosttheiredge,theSeigiChojinreopentheHerculesFactory,thetrainingschoolforsuperheroes,andbegintraininganewgenerationofheroestotakeonthedMp.Althoughunwilling,Mantaro(KidMuscle)isoneoftheyoungheroeswhotakespartandultimatelydefeatshisfathertoprovehisworthinesstograduate.HeandtheothernewSeigiChoujinfightanddefeatseveralmembersofthedMpandmeetKevinMask(ParodyofpopularwrestlerKevinNash),whoquitstheorganizationafterseeingthattheylackhonor.TheyalsobattleSunshineandhispupils,whodestroythedMpafterdevelopingarekindledrespectforthefightingspiritoftheSeigiChoujins.…