It's a Showdown, I'm the God of War

Use your energy to control the sword, use your energy to kill people! Magic needles and elixirs, a thought of life and death! Five years ago, he stood at the top of the world's martial arts world, arrogant and fearless! Five years ago, with one man and one sword, he frightened the enemy's 50,000-strong army into not daring to take a single step further, and the world was shocked! However, he was betrayed by his most beloved woman, and most of his eight meridians were broken! Five years later, when the long sword that had been dusted for a long time was unsheathed again... He wants this traitor to go to hell! He wants half of these eight deserted mountains and rivers to be stained with blood!