Ku He had killed the Qing Emperor mainly because the Qing Emperor had planned the Battle of Dong Mountain and a series of other actions in order to unify the Qing Kingdom. The Qing Emperor's plans were aimed at cutting off internal and external troubles and then leading his troops out of the capital to unify the mainland. This was a situation Ku He, as the North Pole Imperial Advisor, did not want to see, so Ku He wanted to kill the Qing Emperor to prevent this from happening.

Ku He was not the Qing Emperor. Ku He was a character in the novel " Celebrating Years." He was the Imperial Advisor of the Beiqi Kingdom and also the patron saint of Beiqi. The Qing Emperor was a Great Grandmaster hidden in the Qing Royal Palace and possessed the aura of an Overlord. Although the Qing Emperor could instantly kill Ku He in the Qing Dynasty, Ku He was not the Qing Emperor himself.
The four grandmasters in Joy of Life were the Qing Emperor, Ye Liuyun, Ku He, and Sigu Jian. The Qing Emperor was a Great Grandmaster hidden in the Qing Royal Palace and possessed the aura of an Overlord. Ye Liuyun was from Qing Kingdom. He was good at Flowing Cloud Sanshou and was the only Great Grandmaster who had not received the blessing of the Temple's martial arts secret manual. Ku He was the Imperial Advisor of Northern Qi. He had become the world's first Great Grandmaster through a mysterious secret manual. In the battle of Dong Mountain, the Qing Emperor had single-handedly killed three Grandmasters. Ku He was defeated and heavily injured by the Qing Emperor's Tyrannical zhenqi. In the end, he was no match for the Qing Emperor and died. Thus, the Qing Emperor was able to instantly kill Ku He in Joy of Life because he cultivated Tyrannical zhenqi and possessed great strength.
Wu Zhu had successfully killed the Qing Emperor in Joy of Life. In the novel, the Qing Emperor and Wu Zhu fought. The Qing Emperor cut off Wu Zhu's legs and seriously injured him. However, the Qing Emperor was curious about Wu Zhu's true appearance and removed the black cloth covering Wu Zhu's eyes. In the end, he was killed by Wu Zhu's laser eyes. The original description could be found in Joy of Life.
The Qing Emperor was regarded as the strongest of the Four Great Grandmasters. The Tyrannical zhenqi that he cultivated had the power to destroy everything in its path and could easily defeat the other three grandmasters. Ku He was the Imperial Advisor of Northern Qi. Although he was also one of the Four Great Grandmasters, he had been defeated by the Qing Emperor at the battle of Dong Mountain. Thus, according to the information provided, the Qing Emperor was stronger.
The Qing Emperor was regarded as the strongest of the Four Great Grandmasters. The Tyrannical zhenqi that he cultivated had the power to destroy everything in its path and could easily defeat the other three grandmasters. Ku He was Northern Qi's Imperial Advisor. Although he was also one of the Four Great Grandmasters, he was defeated and heavily injured by the Qing Emperor's Tyrannical zhenqi in the battle of Dong Mountain. In the end, he was no match for the Qing Emperor and died. Thus, according to the information provided, the Qing Emperor was thought to be more powerful than Ku He.
Ku He was instantly killed by the Qing Emperor in his battle. The Qing Emperor first used a punch to knock down Sigu Jian. Then, he crossed half a lake with a finger and poured a large amount of zhenqi into Ku He's body, causing his meridians to explode. The Qing Emperor's advantage lay in his deep internal energy and Tyrannical zhenqi, while Ku He had exquisite techniques in sword techniques. Although Sigu Jian had injured Ye Liuyun while he was heavily injured, the Qing Emperor's strength was superior. As a result, Ku He could not win against the Qing Emperor.
Ku He was defeated and heavily injured by the Qing Emperor in his battle with him. The Qing Emperor used his Tyrannical zhenqi and battle techniques to successfully exhaust Ku He's zhenqi. In the end, he defeated Ku He with the ultimate technique of crossing half a lake with a finger. Thus, it could be said that Ku He was no match for the Qing Emperor.
The Qing Emperor killed Ye Qingmei, Chen Pingping, and the Eldest Princess, Li Yunrui.
The Qing Emperor killed Ye Qingmei, Chen Pingping, and the Eldest Princess, Li Yunrui.