Fantasy: Immortal Officials from the Underworld

At the beginning, my mother committed suicide to save my life. The princess, who was persecuted by an adulterer, was imprisoned in the home of an ugly country man, who had to bear the humiliation and bear the burden of raising children for him. He escaped from life at the cost of a pair of children and fled back to the imperial city with his eldest son, but his body had been tainted and he committed suicide in exchange for his son's life. The eldest son has spiritual roots, and was planted with immortal seeds by the Yinsi Guiyamen. He obtained the Kunxu Immortality Jade from the immortal official who was in love with the way of the furnace and cauldron. From then on, he embarked on the road to eternal life and worked as a Yang official in the underworld. Everyone is cultivating immortality for the sake of immortality. I just hope that the way of heaven will be clear and I can give an explanation to my mother and son. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.