The Original Body, the Martial Saint, Starts by Developing Two Hearts.

In the twenty-eighth millennium of the human era, Jiang Sheng, carrying the memories of a century-old veteran from his previous life, traveled to a strange planet. The traitors who were bewitched by the evil god turned into a family that was causing trouble in the dynasty. Species contaminated by the subspace have mutated into monsters that hunt humans. Using the spiritual machine to carry the physical body and strengthen it, and using the demon soul as fuel, Jiang Sheng re-calculated the nineteen superhuman organs to reach the sky. The second heart, bone strengthening, muscle strengthening, third lung... In terms of true Qi cultivation realm, I am not as good as you, and in terms of physical strength, you are not as good as me. You don't understand, the ancient secret method of body tempering is tempered by body tempering. Three knives chopped the demon's soul into pieces. Sir, I didn't eat anyone. What's going on? There's a boy from the Demon Slayer Division. He's in the same realm as me, and his body is stronger than mine? Then give it a spanking and order it.