Cultural Relic Restorer: the Underworld Has Ordered Me to Take up the Post Immediately

I was born to be world-weary, and everything I see is gloomy. Only the remnant souls in ancient objects can bring me a moment of peace. Until the underworld system collapsed, I, the "remnant soul container", was forcibly recruited and became a "non-staff judge" to repair the Yin and Yang order. Gu Qingjue, the last guardian Taoist priest who is unattainable in the eyes of the world, sees me as a walking disaster in human form. He is cold, arrogant and ascetic, and every collaboration is like dancing on the tip of a knife. "Gu Qingjue, aren't you going to accept me?" He lowered his eyes coldly and wiped away the ghost blood on his sword: "When you finish repairing the underworld, I will personally send you to reincarnation." ——But later, it was he who cut off reincarnation for me with his own hands, just to keep me in the world. (I am a newbie, so you don't need to pay too much attention to the sub-paper, I was totally confused)