Vertical and Horizontal Planes

"Comprehend the first level of the Heavenly Sword's Invincibility, and the sword becomes one!" "Understand the second level of the Heavenly Sword's Invincibility, my sword is also my sword!" "Comprehend the third level of the Heavenly Sword's Invincibility, the sword is my will!" After fighting to the death again and again, the man realized that the Buhui knife in his hand was running upwards step by step, and finally appeared outside the city again... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.