Rebirth of the Ghost Realm Civil Servant

In his previous life, his whole family was killed and turned into ghosts and reborn two years ago. The explosion happened two years ago. In this life, An Yan vowed to find out the murderer who killed his whole family in his previous life. He also cultivated immortality and caught ghosts in this era of lawlessness. But when the murderer surfaced, An Yan was shocked, this man! Why do you look so similar to him? Who is he? In this life, can he still protect the people he wants to protect? The unit's literary spirit is different, not scary! There's a case to be solved! Catch ghosts! Destroy the demon! And plots such as cleaning up time and space intruders!