I Came to the Ancient World to Cultivate Immortality, but You Asked Me to Build Missiles

Yin Changsheng traveled through the ancient world, and all he wanted to do was ride a sword and fly to the immortal world. Unexpectedly, this ancient world was a bit strange. What Pangu used to open the sky was not an ax, but the opening battle ax and annihilation cannon; The Sun-shooting Arrow is actually a Tiandao-level surface-to-air missile; The Zhuxian Sword is not only a sword, but also a spaceship that can navigate the universe; Yin Changsheng had no choice but to start researching Hongmeng missiles to suppress Honghuang. After all, this is for nuclear peace.