C21 A Secret Place: Can You Guess It?

A few moments later,

“Where are we now, Nyx?”

A violet-eyed girl was confused when she saw the scene in front of her. From where she and her best friend stood, about ten meters away, there was a golden door that was very glittering. The Moon Goddess looked around, and then she felt something odd because there was nothing there, only a large, empty room seen. However, the place is indeed bright