Taoist in the Afterlife

When the Taoist priest from another world came to Da Qin, all the required spells were available. They first extended the life of the First Emperor, and then gave him a map of the world to help him unify the world. However, on the day of unification, he found that the door to another parallel world had been opened, and he had to go to another world again. Let's see how he stirs up the storm in this alien world, makes Taoism glorious again, and makes Taoism the state religion of the empire. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.