The Heaven-Cursed Costs Life, But I Have Infinite Life

TheEldranContinentisalandfilledwithmanyracesandmonsters.Humansaretheofficialrulers,yettheyaresurroundedbypowerfulenemies.Fortunately,ifahumanreachestheageof18,theymightawakenaprofessionandgaingreatcombatpower.AllenWalkerwasanorphanfromtheslums,yetheawakenedtheSSS-rankprofession,TheHeaven-Cursed.UsersofTheHeaven-CursedcanonlycastForbiddenSpells,butusingthemcoststheirownlife.NoTheHeaven-CurseduserintheEldranContinenthaseverlivedpast30.ButAllenseemstohaveinfinitelife.IfTheHeaven-Cursedcostslife?Let'sjustaddonemillionyearstoit.Andso,amadmannoonedaredtomesswithwasbornonthecontinent.Alocalthugcried,“Boss,Ijuststoleapieceofbread.Wasn'titasmallthing?WhyuseaForbiddenSpellonme?”AVampirePrincebowed.“LordAllen,mayIhavejustadropofyourblood?Inreturn,I'llgiveyoumydaughterinmarriage.”TheDragonRealmpleaded,“Mylord,takeallthegoldinmytreasurehoard.PleasestopusingForbiddenSpellsonme!”TheDemonKingshouted,“Areyoucrazy?UsingForbiddenSpellslikethatwillkillyou!You'lldieifyoukeepthisup!”...Tenyearslater,Allenfinallyturnedthirty.AlltheracesoftheEldranContinentthrewall-nightpartiesincelebration.AGreatDragonroared,“It'sbeentenyears!DoyouknowhowIsurvivedthesetenyears?Thatjerkisfinallydead!”TheDemonKingcheered,“Today,weattackthehumanworldtocelebrate!”TheLightPopelaughed,“Now,whodarestodefyme?”Justasalltheracesbecamerecklessandthoughtnothingwasoff-limits,theyfrozeinterror.Allenwasstillalive.Thirtymoreyearspassed,andAllenwasstillalive.Threehundredyearslater,AllenusedhisForbiddenSpellslikebasicattacks.Threethousandyearslater,thecontinentwasunified,andallracespaidtheirrespects.TheDemonKingkneltrespectfullyonthegroundandaskedthequestiononeveryone'smind,“MyLord,areyoutrulyimmortal?”