My Sword Does Nothing

One person, one sword, and one passion, for a peaceful and prosperous age. A suit of armor and scars all over his body, in exchange for a ridiculous truth. The world is vast and I could have been at ease. The obsession is too deep, but the end is miserable. Even with a thousand years of achievements, it is difficult to calm the anger in my heart. Ye Zhou, I really can't do anything!