The four selected girls started a different life in this bizarre world.
During the day, you have a normal study life, but at night you fall into a dream and enter another world. That world is almost the same as the real world, but there are many unknown stories hidden in the darkness.
Every city has its own unique urban ghost stories, and these ghost stories are actually real. The four selected girls go to sleep every night with the task of solving the urban ghost stories. This is their destiny and cannot be broken! Unless the next successor appears!