Universal Job Change: Is the Swordsmith Weak? Start Nightshade!

This is a world where everyone changes careers. As long as everyone reaches the age of eighteen, they will participate in career awakening. Those who have awakened to high-star professions will be able to enter higher education institutions in the future, marry Bai Fumei and reach the pinnacle of life. Once a low-star profession is awakened, it basically declares that the future is over. And Xie An traveled through time and awakened the legendary most useless 'swordsmith' at the beginning! "Swordsmith? What's the use of this useless profession?" "You go to the battlefield with this gadget, you can't even be used as cannon fodder!" "At least a blacksmith can make armor, and a swordsmith can make a sword. Who can use it these days?" Xie An didn't panic at all in the face of everyone's sarcasm. He just had a faint smile on his lips and sketched a woman in blue wearing a fairy dress with wide sleeves on the drawing paper in his hand. ... Until that day when all the beasts attacked. Humanity was completely defeated and retreated to the Great Wall. Faced with thousands of troops, Xie An stepped forward with one sword and one man: "Have you ever heard of the Immortal Killing Sword Formation?"