The Immortal King of Qin, Starting from Eating the Golden Cicada

One is ageless and immortal, indestructible and eternal. The other is terminally ill, with its life nearing its end. The first body is named: Golden Cicada. A single drop of its blood can make a frail person as vigorous as a dragon and a tiger; a piece of its flesh can extend the life of a dying person by a year. As for the other broken body, it resides in the Central Plains, a hundred thousand li away. Serving as the youngest "King" of the State of Qin. Unfortunately, though the "King" is young, he is plagued by illness. However, as long as the King of Qin can successfully consume the Golden Cicada... Then, an immortal and indestructible King of Qin will lead his iron cavalry to sweep across the four seas and eight wildernesses, unifying the world.