Earthian

Chihaya in his human form

Chihaya (ちはや)

A beautiful male angel with short black hair. When he transforms he has long black hair and black wings. In Eden, where angels are generally fair-haired with white wings, Chihaya's naturally dark features make him an outcast. Despite his mutation, he is light-hearted and happy, and he cares deeply for the Earthian, unlike most other angels. This rare quality allows him to see beyond the Earthians' violence and destruction to the core of their hearts, which he believes are pure and kind, despite any other shortcomings. He is a positive checker, though he tends to let his emotions get in the way of his work. His special power is the ability to generate storms. Chihaya is the lover of Kagetsuya.

Kagetsuya in the human form

Kagetsuya (影艶)

Chihaya's partner, a negative checker. He is a typical looking angel, with blond hair and white wings, and is from a wealthy family. Like most other angels, he also bears a strong resentment towards the Earthians, who he believes are irresponsible and selfish. He is more mature and focused than Chihaya, and often ends up having to go to the aid of his partner. His specialty lies in bird calling and the healing arts. Kagetsuya is the lover of Chihaya.

Dr. Ashino (Professor Ashiya)

The mad doctor who created the biohumanoids, Taki and Takako. He seems to love Taki more than anything else in the world, and his madness reaches its peak when his beloved creation defies him. Later, inspired by Chihaya, Ashino creates a third android, this one a black angel.

Taki (多紀)

An android made specially by the doctor to possess inhuman strength and endurance. Fed up with his life as a captive toy, Taki takes Takako and flees the laboratory, much to the dismay of his creator. He cares for Ashino, but he also does not want to be treated like a lifeless thing with no feelings.

Takako

Gynoid. Like Taki, she is an artificial. When the two of them get separated, she runs into Chihaya, who helps her flee from guards sent by Dr. Ashino to take her back to the lab. She is very concerned about Taki's well-being, for she does not know what had become of him after their escape, but apparently, Chihaya has some idea as to where he is...

Messiah

The black-winged angelic android created for one purpose only: to destroy the Earth and all the miserable people who went about their lives in spite of Dr. Ashino's suffering. Incidentally, before his memory chip can be properly finished, he makes contact with Chihaya, who shows him his identical black wings. Messiah becomes confused, but decides that what he truly wants is to protect Chihaya, at all costs...

Aya (あや)

A female minus checker from Eden who openly flaunts her love for Kagetsuya and her scorn for the Earthian. She constantly makes it known to everyone that she would rather be Kagetsuya's partner, but not so much that she would convert to a plus checker. She gets worked up easily and is deeply envious of Chihaya.

Miyagi (宮城)

A male angel that slightly resembles Kagetsuya. Unlike the latter, though, he is a positive checker for the Earthian and believes that they should be given a chance. He is Aya's partner. His temperament is somewhat more relaxed than hers, and so he tries to keep her in check whenever possible.

Lord Seraphim (セラフィム, Seraphim)

A former leader of the plus-checkers of Eden that contracted the Black Cancer. He later descended to Earth where Chihaya and Kagetsuya found him before he died. He was very close to Chihaya and the black-angel took the loss very badly.

Cliff Gray

Another angel who contracted the Black Cancer who was living in England with the woman he loved, Blair. Chihaya sought him out when he was battling with his doubts about his own wing and hair color. He later died from a gun wound.

Blair

The Earthian that Sapphire fell in love with.

English: Bill Flaman, Chris Nubel, J.R. Rodriguez, Rick Forrester

Of the four OVAs in the series, Fallen Angel is the only one that does not relate to the events of the first.

Chihaya and Kagetsuya are staying in France for their current assignment, and lately Chihaya has been having some disturbing nightmares. As Kagetsuya tries to console his partner over breakfast, Aya and Miyagi show up on vacation, and decide to stay in France for a short while.

Chihaya and Kagetsuya's mission is to locate the exiled angel named Sapphire, who has been hiding on Earth ever since his wings became black with cancer. Chihaya discovers Sapphire's whereabouts, and, learning about the former High Angel's predicament with some shady dealings, he lets himself become involved, much to the dismay of Kagetsuya, who knows that every time something bad goes down with the Earthian, it is always Chihaya who suffers.

The partners struggle to help Sapphire while keeping everything a secret from their guests, but Chihaya's exceedingly strange behavior has not been lost on Aya, and she begins to make some deductions of her own. Both she and Miyagi are well aware of the fact that Sapphire's disappearance has not been taken lightly back in Eden, and as it is, any fallen angels are considered to be a huge disgrace.

In the midst of all this, Chihaya is also hiding a secret of his own; one that has to do with the frightening dreams he has been having. His fears are eating away at his heart, and he worries that what happened to Sapphire might be the same thing that caused the abnormal color in his wings and hair.

Picking up where the 1st OVA left off, Chihaya and Kagetsuya are trying to infiltrate Dr. Ashino's lab in order to rescue two black angel children who are being held for interrogation by the mad doctor. The pair split up to search for the hostages, and while wandering through the corridors, Chihaya discovers, locked away in a side room, a black-winged angel like himself, attached to wires extending from the walls.

The angel's name is Messiah, and Chihaya, desperate to get the dormant figure's attention, exposes his wings at the window of the room. Messiah's memory chip, still in the process of being encrypted, takes in the image of Chihaya's transformation and fills Messiah's mind with strange emotions. He is compelled to approach the angel on the other side of the glass window, but cannot get out of the locked room.

An alarm begins to sound, and Chihaya and Kagetsuya meet up again, Kagetsuya carrying the two children. They are forced to evacuate the lab immediately, as it is about to explode. Elvira, the mother of the children, pulls up in her car and help them get away. Chihaya is deeply troubled that he was unable to save the black-winged angel.

One morning, while watching the news, Chihaya discovers that Doctor Ashino has arrived in the city accompanied by a strange man in a trenchcoat. Chihaya immediately recognizes the man as Messiah. Ashino has been having dealings with the military, and was commissioned into creating the ultimate weapon of destruction: Messiah. However, he is not in it just for the money. Troubled by the fact that Taki abandoned him, Ashino is plotting a revenge against the entire world, who stood by despite his suffering.

Chihaya is reluctant to accept Messiah's disappearance, and no matter how Kagetsuya tries to comfort him, he can only ever think of the android whose wings were like his. Messiah, in the meanwhile, is making his living carrying out errands for a club of drug dealers. He feels accepted by these people, who are appreciative of his physical strength, but longs to find Chihaya again.

Using his connection to the world's computer database, Messiah searches for his friend. Chihaya, also online, discovers Messiah's call, and rushes to meet him in the sky. However, Ashino has also been tracking Messiah, and he sends in men to capture the runaway android.

Ultimately, Messiah needs to choose between staying with Chihaya and learning more about the emotions that confuse him, or give up his freedom in exchange for the assurance of Chihaya's safety, and become the weapon of destruction he was intended to be.