Douluo: the God of Death Comes to the World and Turns into a Demon!

(Excellent Douluo fanfic, never updated, the 18-year-old new author please give me some light comments!) (The single female protagonist Qian Renxue, if you don't like it, don't enter.) Traveling across the Douluo Continent, Gu Du became a twin martial soul soul master with only half a level of innate soul power. His family was destroyed by mysterious forces and he could only flee in a hurry. And when he came to Shrek Academy to find Ning Rongrong, who had been engaged to him since childhood, and asked for help from the Qibao Glazed Sect, which had an oath of alliance with the family, he was caught off guard and the engagement was canceled on the spot. Under the mixture of grief and anger, Gu Du's twin martial souls turned completely black under the catalysis of emotions, and became twin super-god-level martial soul soul masters that shocked Douluo Continent. God has no mercy on me, I would rather become a devil! It's not me who goes against heaven, but God who goes against me! When he was in danger, Qian Renxue, who transformed into Xue Qinghe, rescued him, thus changing the fate of the two of them. Since then, he has become Qian Renxue's shadow and the number one killer in Wuhun Palace, the Sword Demon! Gu Du: If Xueer wants the world, I will give it to him. If you don't obey, I will kill you every ten steps, staining the sky with blood, until no one in the world dares to respect you! I have the Yanhuang Sword Box, in which I hide the famous swords of ancient and modern times. I can kill gods and demons, and move across the universe! I have the soul-eating evil eye, which feeds on the creatures in the world, swallows the sky and the earth, and is unparalleled throughout the ages!