The play mainly revolves around a pair of lovers who inadvertently discover that there is a cabin-like secret room in the backyard of their home, through which they can come to On a completely strange planet, after the two discovered the secret, they decided to keep the secret from now on and not let others know the secret. However, a mysterious man breaks into their current life and messes up the two people who were living a comfortable life. When they thought they knew the secrets in the cabin, many strange phenomena happened, beyond their imagination. What is the truth behind the complexity? They decided to go to the uninhabited planet to find the answer and explore the real secrets of the universe through the secret room of the cabin. However, they don't know what they are about to face. Seeing a completely strange planet in the universe creates more doubts. Under the beautiful night sky, there are all kinds of substances hidden. These substances do not belong to any place, and we can see the magical side of the universe