Ghost Traces

Ever heard of a "night errand"? This is the noble name I gave my career. The biggest difference between me and my colleagues is that they serve people, while I serve ghosts. In this world, in addition to "people", the only people who can find me and successfully entrust me are vampires. For me, no matter how difficult the task is, the reward afterwards is only a piece of information related to "him". Because I have only one goal in life, and that is: to find him, question him, and then kill him. --- "My name is Suyu, and I am immortal. I feed on blood and advocate violence. The only taboo is that you must not meet me when I am hungry, otherwise, you will be responsible for the consequences."