A Sea of ​​Blood Pillows the World of Mortals

The former genius was poisoned by a strange poison and became a cripple, and was massacred by his entire family. In order to take revenge, he secretly joined the enemy's sect, made elixirs to heal his wounds during the day, and sharpened his bloody sword at night. When he pointed his sword at his enemy, he saw that the aloof Qing Leng Palace Master was actually the person he had saved with his own hands. The elixir fire and blood hatred are already boiling. Is this sword going to strike at the benefactor, or at this hypocritical path to immortality?