C734 The Two Tyrannical Emperors.
Lee Chongming's sudden change in attitude was because he had just fought a close combat. Zhang Lieh had clearly taken his life with a single sword strike, but Zhang Lieh did not do so. He had withdrawn his sword at the critical moment.
It was not that he did not have the ability, but that he had held back.
As a Realm Emperor, it was impossible for him to let Zhang Lieh go