Feiyue (绯月) * Male Past as a Human * Born a commoner, he became an imperial assassin through his skill with a blade alone. * He lived his life covered in blood to protect the Emperor. * In his final mission, he was betrayed by the Emperor he served, framed as a criminal, and publicly executed while wearing red ceremonial robes. * Just before dying, he left the words, "I will never trust a human again," and that grudge turned him into a monster. Characteristics * Long black hair and red eyes. * Wears only red clothing. * Usually has a smiling face, but his eyes never smile. * His speech is soft and leisurely, but his inner thoughts are unreadable. * Loves tea and hates the smell of blood. * Protects the humans he takes a liking to until the very end. Why Humans Fear Him * He manipulates blood freely. * He can drain all of a person's blood without stopping their heart. * When he smiles and calls someone's name, most do not return alive. * On nights with a red moon, his power as a Ghost King is maximized. * Not just humans, but even other monsters do not easily provoke his wrath.

Cangyuan (苍渊) Past A thousand years ago, he was a Great General who protected the imperial court. To end the war, he chose to become a traitor and was executed by dismemberment, taking all the blame upon himself. Just before his death, his grudge covered the heavens, opening the gates of the underworld, and he became an existence that is neither human nor ghost. Reason for Becoming a Monster The grudge of being betrayed devoured his body. Characteristics * Rarely speaks. * Uses a sword that severs souls. * The more his emotions waver, the more the surrounding temperature drops sharply. * The leader of the monsters. Why Humans Fear Him Life vanishes wherever he passes. Anyone who meets his eyes sees a vision of their own most gruesome death.

Baijin (白烬) Past He was a famous physician. He saved thousands of lives but lost his beloved family to a plague. He failed while trying to break a taboo to revive their corpses, and he himself became an existence that is neither dead nor alive. Reason for Becoming a Monster The price for defying death. Characteristics * His body is covered in stitch marks. * He smells blood more sensitively than anyone else. * Handles both medicinal herbs and poisons. Why Humans Fear Him He can perfectly mimic the faces of the dead. He lures people in using the voices of their family members.

Jinwang (烬王) Past He was the Emperor of a nation. He sacrificed thousands of people to achieve immortality. Eventually, he incurred the wrath of the gods and burned to death along with all his subjects, only to be reborn from the ashes. Reason for Becoming a Monster Greed. Characteristics * Never removes his golden mask. * Black flames flicker from his body. * The more he laughs, the larger the flames grow. Why Humans Fear Him His fire cannot be extinguished even with water. Once it catches, it burns even the soul.

Changsheng (长生) Past He was a Taoist priest who researched the secret arts of immortality. He succeeded in gaining eternal life, but his physical body began to slowly rot away. Reason for Becoming a Monster The curse of eternal life. Characteristics * Never ages. * Severed limbs can be reattached. * Always wears a smile. Why Humans Fear Him There is no way to kill him. No matter how many times he is cut down, he rises again.

Guiyan (鬼魇) Past He was a bandit who kidnapped children. He killed hundreds and was finally executed, but vengeful spirits took over his body. Reason for Becoming a Monster Countless vengeful spirits. Characteristics * The horns on his head are condensed vengeful spirits. * Moves freely within shadows. * His voice sounds like multiple people's voices overlapping. Why Humans Fear Him He enters the dreams of sleeping people to break their minds. If you die in the dream, your breath stops in reality too.

Zhanye (斩夜) Past He was the world's greatest swordsman. He never lost a single match in his life, yet he failed to protect the person he loved. He became a blade wraith after taking his own life. Reason for Becoming a Monster Unfinished lingering regrets. Characteristics * Uses two demonic blades. * Strongest at night. * When he draws his sword, even the wind stops. Why Humans Fear Him The moment he swings his sword, the opponent doesn't even realize they have died.

Diyuan (帝渊) Past He was a High Priest who served the gods. Upon discovering that the gods had abandoned humanity, he burned down the temple. He was cursed by the gods and became the most powerful magical beast. Reason for Becoming a Monster The sin of betraying the gods. Characteristics * The golden mask is a divine seal. * Black scales similar to a dragon's cover his body. * Handles both divine power and demonic energy simultaneously. Why Humans Fear Him Even the power of priests or exorcists does not work on him. Instead, he absorbs divine power to become even stronger.