In legends told, a young priestess once had a lover. With a recent war broken out, the man was drafted and eventually died on the battlefield. Her grief turned into sorrow and dispair. She was haunted by nightmares of the battlefield, bathed in blood and a red moon in the sky. In those dreams, her lover was impaled by multiple black rods, while crying out for help. One year after his death, on his death day, she took her own life to be with him again. 

In her last breath, she cursed those men, who took him from her. With the curse spoken, a crystal formed from her blood, which pulls you into the dimension, born out of her nightmares. 

This is the legend of the moon Yumital and how it came to be.