In the war with zuomo that day, Xie Xuan used a fish dragon to change into a second one. The hidden dragon was in the abyss. This secret method had a huge load on his body. The first two uses made Xie Xuan lose all his energy. So after he defeated zuomo, Xie Xuan didn't waste time tormenting him, but gave him a happy death. It was not Xie Xuan's kindness, but he was worried The duration of heart secret will end at any time. At that time, when the secret law backfires, I'm afraid I don't even have the ability to protect myself.

that's why he killed zuomo and...