Zhang Zhengli, known as “one hand holding up the sky,” is one of the best masters in the arena. During this journey, he happened to pass through Jeju Boryeongbu and met the son of an old friend. He invited Zhang to join the Demon Seizing Society. Zhang was used to being free and independent, so he refused immediately because he could not bear the constraints. However, the other party was not disheartened. The next day, he even found the head of the White Tiger Altar, Zhang Zhengli’s eldest disciple, Sofier, to persuade him. In the end, Zhang Zhengli was still unmoved, which aroused murderous intent. When they were about to leave, Sofier poisoned Zhang Zhengli’s wine glass, and then Yinmo, the second in command of the Yin and Yang Demons, disguised as a maid, suddenly attacked and killed him. The Yin hand seal was imprinted on Zhang Zhengli’s lungs. Zhang Zhengli fought back and escaped, fleeing to the home of Lu Weixian in the capital city to hide. Lu Weixian also resigned from his job to take care of his master at home. In order to cure his master, Lu Weixian had no choice but to sell the family heirloom, the Sword of Heaven and Earth, which his mother had given him before she died, to buy medicine to cure his master.