Got Stabbed at the Beginning and Was Reborn as the Yin Yang Messenger

The underworld is in chaos, and lonely ghosts are everywhere in the world. Lin Cheng has been able to see ghosts and things that ordinary people cannot see since he was a child. Just after the full moon, my mother passed away, followed immediately by my grandfather, and even my father committed suicide by jumping off a building in front of him. Lin Cheng and grandma depend on each other, and grandma is not an ordinary person... Lin Cheng was stabbed to death by a debt collector. He was unexpectedly reborn and discovered that he was immortal. Lin Cheng: "Be reborn into yourself after death? Shouldn't it span time and space? Isn't this a bit ridiculous? Also, what about your own system? No system?" "He was a psychic in his last life, so he shouldn't be allowed to catch ghosts in this life!" "Grandma is not an ordinary person? Then what is she?" "I can travel between the yin and yang realms. Who am I? A ghost? Or a human being?" The introduction is weak, please read the text! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.