A legendary flower said to grow in the heart of Crescent Minoria. On some days, only the white petals are visible. On others, only the black petals are visible. It is thought to have similar properties to that of the Koshio flower, with a salty and spicy center. This has yet to be proven, however.
I am LIVING for the head cannon going around that Xie Lian has actually lost it centuries ago and his beautiful husband, Hua Cheng the Crimson Rain Sought Flower Ghost King himself, is actually a putrefied abomination/horrific creature of the night and he just doesn't see it.
BUT! Why leave the other calamity ghosts out of this fun filled horror fest??