Lu Xiaofeng Is Determined to Make a Good Sword That Can Stand up to Heaven and Earth.

Dad said: To be a man, you must be a good and upright person. Then should Gong Bichao also make a good sword that can stand up to heaven and earth? However, both the length and density are determined by the craftsmen in advance. Wouldn't it violate the law of conservation of mass to stand up to the sky without authorization? (What kind of science do you, a sword spirit, still believe in?) Press the board of Newton's coffin tightly. This is a story about a modern man traveling back to ancient times and becoming a sword spirit.