When the First Emperor Traveled to MC

What should we do when the First Emperor dies and appears in the MC world in a 14-year-old body? Donghuang Taiyi: "Your Majesty, according to the Yin-Yang Book you gave me, the Five Elements of Immortality is promising, but... The first place discovered is an undersea temple, which contains Poseidon from the mythology of the seaside people." The First Emperor: "Oh? The Undersea Temple? Poseidon? General Bai, show me this!" "How can I allow others to lie on their sides on my territory?" "Gongshu, I will give you an upgrade book to reach the pinnacle of your machine skills. There is only one thing you have to do, create a large number of mechas that can kill the gods of this world." "I want all soldiers to be able to kill gods alone" Magic has modified some things from the original MC and added myths and gods, such as Western gods, elves, serpents, world trees, etc. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.