One night, the investigator wakes up to find themselves trapped in a square room. In the center of the room, a single bowl of bright red soup sits alone on a table. On a chair lies a map of the room and a warning: "Drink the poison soup." Trapped in this world by the whim of Chaugnar Faugn, the investigators have been brought here without their knowledge. Will they be able to escape this world safely? While living their ordinary, mundane lives, the investigators suddenly wake up in the middle of the night. When they open their eyes, they are in a square room with concrete walls and floors, with doors on all four sides. At this point, the investigators are unarmed, wearing nothing but rags that look like white robes. They have no wallets, no cell phones, and none of the accessories they usually wear. Strangely, within this world, even if the investigators are from different countries, they will feel as if they are speaking to each other in a common language. Only a dim light bulb on the ceiling illuminates the room. In the center stands an old wooden long table and a single chair. Furthermore, on the table sits a wooden bowl containing a single serving of odorless red soup. Two old scraps of paper are lying nearby.