Three Realms Tisi

[Not a cool novel + plain daily life + lighthearted and humorous + having a female protagonist + not sure if it counts as a knife] Be cautious when entering this pit. A coming-of-age novel with the background of sentient beings in the Three Realms. You walk out of an ordinary mountain village and step into a prosperous city, experiencing the world of mortals, ghosts in the underworld, and gods and demons in heaven. When Mo Chen was eleven years old, his deceased grandfather taught him mysterious techniques, awakened his spiritual energy, and gave him a crow as a companion. I, Mo Chen, don't like killing, but I hate people who go back on their word the most! Collect the power of interrogation from the three realms to judge the sins of all living beings I am the Tisi of the Three Realms, Mo Chen.