This story starts from everyone's heart. In fact, there is another kind of "thing" in everyone's heart, but they are hidden deep in the human heart; they can lead you to holiness or corruption. The abilities of these "things" may be high or low, but the key lies in how you exercise them. They are tangible, but in this world, there are very few people who can awaken the "things" in their hearts, let alone those who can make them appear tangibly in front of their owners. When night falls and everything is shrouded in darkness, in your sleep you will find...