Angel of Death

The Angels of Death are a group of six vampire leaders that serve God while also dominating six areas of Korea. These vampire leaders are directly chosen by God due to their enormous power, unique skill or even useful skill. Hence their enormous power, when becoming Angel of Death, each member will drink God's pureblood blood that will greatly enhanced their powers and also extends their half-blood's lifetime (initially 5 years).

These Angels of Death are able to command large amount of vampires on their territory and even said each of them is enough to demolish one city in Korea. Despite their huge power, they are still obey to God's order and plan. Each Angel of Death contributes something to God's vampire society. For example, Lucian holds the financial responsibility and Sahan is massively produces new half-blood vampires. Through out the timeline, Angel of Death also got a primary agenda which is hunting pureblood (Hayan Park).

History
At some point of time, God created Angel of Death by gradually choosing extra-ordinary half-blood vampires. As implied by Lucian's backstory, Angels of Death is chosen gradually by God, where its said that Lucian is the latest Angel of Death. After chosen by God, the member will drink God's blood that will enhance their power and start serving God. However, an Angel of Death's power is usually challenged by some vampires where they can attempt to seize it, for example an UFC Champion turned vampire that challenged Lucian or the Daejeon vampire gang that challenged Sahan.

After the demise of some members of Angel of Death, God didn't replace the roles, simply because there are no worthy candidate yet. It is shown that any vampire who requests to be an Angel of Death but that God deems is not worthy of the title, will be killed violently by God himself.

Lucian Introduction
The Angel of Death is first mentioned on Episode 6, where Lucian's new recruit is being briefed by Lucian's goons. In his elaboration about Angel of Death, Lucian's goon mentioned there are six Angel of Death, each dominates and controls all vampires in six territories of Korea. This vampire able to commands huge amount of vampire and able to destroy one city. The goon recommends the new recruit to just bow and pass anytime he meet an Angel of Death.

Lucian Backstory
Prior to fighting Hayan, Lucian backstory is shown where he's initially a half-blood vampire that acquire his enormous power. Then, it's told that Lucian takes the last Angel of Death role by defeating or conquering all powerful vampires in the area. This last territory is a very brutal area with many powerful vampire wants the Angel of Death role and the vampire's war to get the role has been started for years. In the end, Lucian able to defeat them all in just a few days and acquire the Angel of Death role and drink God's blood.

Euntae's Briefing
When briefing about Sahan, Euntae elaborates his research to Hayan when it's said that each Angel of Death's territory have its own vampire population growth. Later, it's said that Sahan territory has the highest vampire population growth, this matches Sahan's role for God.

Angels of Death Meeting
Sometime after being defeated by Hayan, Sahan is imprisoned but later escaped even though he is severely injured. Then, Sahan comes into an unknown place or mansion, where four Angels of Death gathered with unknown lady vampire. The mansion's hall consist of large podium for God's throne and Levi and also a presentation slide with large table and four chairs. However, when Sahan broke the meeting, God is not present at the meeting. In this meeting, the members of all Angels of Death is finally revealed, which is Lucian (deceased), Sahan, Ash, Mamon, Baal and Gore. These vampires are not reticent to mock Sahan's failure to acquire Hayan's heart, which is resulting on Sahan enraged and eventually assassinated by Ash. After Sahan's death, all of Angels of Death doesn't bother at all and continue the meeting. In the meeting, the Angel of Death is discussing about Hayan and Euntae relationship. In the end of the meeting, Ash is chosen to handle Hayan after Sahan's failure.

Lucian
Lucian or previously known as Woojin Lee is the latest Angel of Death that holds an enormous physical power. He is initially the child of a rich family in Korea and then turned into a vampire. His rich-family background results in his role as an Angel of Death to be the society's financial backer. His extremely arrogant personality granted him a very powerful physical skill after vampirification. At the time of when he became a vampire, the war to get last role of Angel of Death was concurrently happening at the last area. This war involved many powerful and savage vampires that lasted for years but when Lucian joined to take the role, the war ended in just mere days with Lucian taking the final position as an Angel of Death and granting him God's blood. Sometime after his promotion, he is challenged by an UFC-Champion turned vampire whom Lucian kills with ease. Later in the story, he visits Father Michael in search of Hayan and kills him in the process. Hayan who witnesses the Father's death, vowed to get revenge and proceeded to Lucian's club, killing him to avenge Father Michael.

Sahan
Sahan or previously known as Geunwoo Shin is one of the Angel of Death that have a mastery in the art of hypnosis. Using his unique skillset, he got the responsibility to produce newborn half-blood vampire, which is mostly a high school student, where he become a high school psychiatrist. Not much is known for his backstory, unless his sadness as human being and alcoholism trait. Sometime later, he become a prisoner of unknown organization where he is forced to watch vampires video, trained to be a hypnotist and then finally become an Angel of Death after impressively able to hypnotize vampires in his final examination. Hence his unique skill, Sahan physical power is very weak compared to even an ordinary half-blood. This issue resulting to a Daejeon vampire gang challenge Sahan. In the end, Sahan hypnotize them all with his own technique and make them tear themselves. When Hayan finally engages in a fight with Sahan, his hypnosis is shown to work via audio, like finger snaps or simply a chat. Eventually, he is defeated by Hayan and then prisoned with severe injuries. Sometime later, Sahan escapes from the prison and then attends the Angels of Death meeting. But, after enraged because mocked by fellow Angels of Death, he is killed by Ash, a superior Angel of Death.

Ash
Ash, whose real name is Jinha Kim, is a previous Angel of Death. Using her shape-shifting abilities, she transformed into her deceased best friend, Ayeong Song, and became an amazing actress under that persona. In addition to shape-shifting herself, Ash can also shape-shift others, absorb their life force by touching their lips, and use telekinesis. She was chosen by the other Angels of Death to deal with Hayan following Sahan's failure (and subsequent death by Ash's hands) due to her superior abilities. Ash knew early on that she didn't stand a chance against Hayan and tried to use mental manipulation against her instead. She created replica's of Hayan's younger siblings, strapped a bomb to them, and tried to barter the bomb's code for Hayan's heart. Using her own rediscovered shape-shifting abilities, Hayan turned into Jinha Kim, and ultimately ended up convincing Ash that she wasn't evil nor did she need to be Ayeong Song to pursue her dreams. Ash stopped the bomb, leading Hayan to conclude that she never intended to kill her siblings in the first place. Hayan lets Ash live, but she leaves Hayan with a word of advice: "Remember to take care of those that are close to you." Ash gives up being Ayeong Song and, having regained her original body, leaves her apartment as Jinha Kim.

Mamon
Mamon is an Angel of Death that works as pharmacist or medical field. He is shown to be a young man with long black hair, using glasses and likes chewing a gum while in the meeting. Mamon created the "vampire vaccine" that actually turned people into vampires as long as they consumed it for 3 months, once they are turned they are completely under "God's" control.

Baal
Baal is an Angel of Death that have brown skin and purple short hair and usually wear white suit. He seems to be more superior than Ash as he is shown to be visiting her several times and said that he is usually ordered by God himself.

Gore
Gore is an Angel of Death that has been shown as an old bearded man, wearing black / dark suit and seems to be the most polite, calm and respects God the most. Gore has been seen breifly at the Angel of Death meeting. Later, he is on a ship to go to Jeju island, on his ship, preparing to capture Hayan, knowing she will come to him because there are no ships allowed on Jeju island, and Gore controls all of that. Baal tells Hayan that when Gore was human he was a gangster, he ate people alive and his nickname was "The Flesh Eating Demon." He also has unmatachable fighting skills. Gore sent the vampires under his control to guard the ship and as soon as he sees Hayan and Euntae he'll blow up the ship. Hayan and Euntae get past all of that and Gore atempts to use his ability to blow up Hayan. Hayan blocks it without lifting a finger. Gore then turns to blow up the ship but Euntae stops him. Gore pledged his loyalty to Hayan but she kills him anyways.