Castle of Black Iron summary: After the cataclysm, the rules of the world have all been rewritten and the Black Iron Age descends. Steel, steam, martial strength became humanities largest tools for survival. Zhang Tie an ordinary boy, amid confusion was fiercely kicked in the a.r.s.e by the G.o.d of Fate and obtained a sapling that can continuously grow various varieties of magical fruits. The boy screamed, rolled and dived headlong into the torrents of the infinitely vast continent – Ma.s.sive waves of human clans and demon clans gather as the Third “Hundred Year” Holy War is coming. The mysterious vast continent of unknown origin! A magic cultivation system that uses crystals to unlock the body’s potential! The hot-blooded legend about the descendant of G.o.d! The many secrets of the eastern mysterious gate! The endless treasures in the core of the world! Everything in the “Citadel of Black Iron”.