Is Seth a descendant of Tuo Yuwen or a reincarnation?

Seth is a descendant of Tuo Yuwen, and Nicolo is the reincarnation of Princess Ning Ke, which seems to have been purified by Fu Xiqin. Nicole is a female demon general sent by Satan to persuade Saite to join the underworld. Duguningke in the scar of heaven is her past life. Because his heart was purified by Tuo Yuwen in Fuxiqin, he was simple-minded, naive, crying and noisy, and had no memory of the past. He didn't even know that Mobile Island was his own mansion, and he lost all his magic. In Get Along with Seth, Nicole has a crush on Seth. Finally, Nicole helped Seth defeat Satan. God thinks Nicole helped seal Satan and arranged for her reincarnation in Europe. Finally, Seth found Nicole who had been reincarnated and spent the rest of her life with her. As can be seen from the end of Tianji, Seth is a descendant of Tuo Yuwen. The ending of "Tianji" is that Tuo Yuwen gave the Xuanyuan sword to Chen Jingqiu, and Chen Jingqiu gave the magic pot to Tuo Yuwen. Saite has been carrying the magic pot since he was a child. It can be inferred that it is descended from Tuo Yuwen. I especially like Xuanyuanjian, I mean this game.