The Weeping Moon: The Moon That Sheds Vermilion Tears

Four hundred years ago, the moon wept blood. From that night onward, demons—known as the Tainted—swarmed the land, feasting on the spiritual energy of the living. The once-peaceful realm descended into chaos. Now, humanity survives behind two massive walls, while the lands beyond decay into a demon-infested wasteland. Join Linyue and her companions who specializes in finding trouble, inventing trouble, and loudly denying they caused the trouble as they stumble upon the buried truths behind the Weeping Moon. Secrets that have remained hidden for centuries and may change everything they know. — Description from novelcodex.org