In the Heavens, I Have Become a Weapon Spirit

After Zhou Chen, an ordinary person from Blue Star, was accidentally killed when he thought he was saving someone, his soul penetrated into a sword in the other world and awakened the system. But when Zhou Chen was about to use the system to time travel, he was told that he had to save a thousand years of energy before he could time travel. . . There are all kinds of artifacts in the heavens and the world, but I am the real treasure. What, why don't you think I can reshape my body? A body of flesh and blood is not as good as a body of steel. I will directly weaponize it into a human form. (This book may have elements of transvestite and sexual transformation, but of course it's just possible. It just depends on whether the author will suddenly go crazy later)