How did Zhang Baohao bring down Mrs. Wei Zifu in the Korean drama Poseidon?

Zhang Jian set up his own enterprise group to compete with his wife. Because of Li Daoxing's hatred for Zhang, Li and Zi finally joined forces. After a series of infighting, Zi was finally defeated and saved his life. Zhang was finally killed by Li's deputy, and the ending was very tragic. Poseidon is one of my favorite Korean dramas. It's wonderful.