A major plot point of each of the three games is the metamorphosis of the female lead into one of the Devil Angels, under the title of Djibril, with later games, and the associated anime including the sub-plot of cleansing a former lead character. This is done using a halo, normally supplied by Luvriel, but alternative metamorphosis methods do appear in the various games. The form of a Devil Angel differs with the person, with each having both an angelic aspect and a demonic aspect, depending on how they gain the power to shapeshift. These usually are signified by a change in hair color, with angelic Djibrils, all having hair that is some shade of light blue, and the addition of a leotard-style outfit. The only exclusion to this is the New Angelic Gaia Interface, which only has the metamorphosis being that N.A.G.I. just gained a leotard. In Makai Tenshi Djibril 4, however, this is changed completely to a form of a jumpsuit, with hair colors not changing, and, by Dennou Tenshi Djibril, all Devil Angels are created in the same way as N.A.G.I. In the games, the dark aspect is indicated by the colors of their uniforms changing to red and black, as well as changing their eye color, as well as other additions dependent on the level of corruption. Later games used the specific title
Djibril for them so they wouldn't be confused with the historical angel Gabriel. Known Devil Angels include – ;Rika Manabe (Djibril): The first of the three Devil Angels, as well as the only one not related, by blood or choice, to Naoto. She is Luvriel's replacement in the first game, due to a
mutually assured destruction strategy gone wrong. She was captured in the second game by a giant wormlike creature, over the course of the game, put through a perverse version of her training in the first game, and in the third game, she was weakened by the use of a spell cast through the corrupted hand of Dark Aries. ;Hikari Jinno (Djibril Aries/Dark Aries): The second of the three Devil Angels, Aries was recruited to replace Rika when she is defeated in battle and taken as spoils. She also spends most of the third game in a second, corrupted, persona of Dark Aries, which has a unique power to control minds. She is stronger-willed than Rika, managing to break the controlling influence of Misty Mei in the third game multiple times, and, at least in the anime, summoning her own 'Super Nova' style attack despite being almost completely controlled. ;New Angelic Gaia Interface (Djibril Zero):Djibril Zero is a last-resort Djibril, in that a N.A.G.I. has the capability to regenerate damage, and even incapacitation, within reason, can be recovered from as long as the interface can be restarted properly. She has only been used once in this capacity, during the third game, when Jibril Aries is abducted, and used to further incapacitate the original Djibril. ;Momo Sakura, Aoi Ayonokouji and Yuzuha Hoshikawa (Spica, Althaea and Junos): A trio of students at Luvriel's first attempt at a school for angels, who manage to become Devil Angels. Notably, from this point on, the appearance of Devil Angels varies wildly. ;DJibril Regulus, Muse and Alnair: Three of the students at Luvriel's second attempt at a school. Notably, there are over a dozen other confirmed Devil Angels, but these are the only ones explicitly named. ;Meimi Otonashi (Misty Mei): While not a Devil Angel in the sense that she was recruited by Asmo originally, Misty Mei does gain power in the same ways as all three Djibrils. Numerous attempts have been made to befriend Misty Mei, but she is never able to achieve her actual Djibril appearance or identity, appearing, in all three original games, as a
gothic lolita with black bat wings. Notably, She was pivotal in some cases to the capture and controlling of the first two Devil Angels. ;Super X-32: A false angel created in the third game and anime, intended to be a counter for the Djibril series. Rather than having a human component, Super X-32 is a gynoid with several weapons and features intended to render the need for agents like Dark Aries and Misty Mei largely redundant. In the anime, she is considered to be N.A.G.I.'s mirror duplicate, an artificial devil program to fight the artificial angel program, while in the games, she is only encountered once during N.A.G.I.'s ending path, and is not actually fought.
Powers "Amore" (Magical Energy): Metamorphoses Rika, Hikari or Nagi into Djbril from having sex with a person of the opposite sex for whom they care for. Negative Amore, created by tentacle and/or demonic sex causes a Devil Angel to turn dark. Notably, Super X-32 can absorb and use positively charged Amore according to the anime, making it clear the Amore is virtually identical, but processed differently by a Devil Angel, however it is made. "Tenshi no Shiki" (Angelic Ceremony): By performing particular sexual acts under the same conditions as when they accumulate Amore certain powers are stored up. Each power has two different forms: A Heaven Form and a Hell Form, which are achieved by a different act, but give the same effect. Despite the names of the forms, they do not visibly cause a Devil Angel to have a greater or lesser chance of turning Dark over time. These were phased out with later revisions of the Djibril metamorphosis process. "Cellular Regeneration": A unique power of Djibril Zero, She is able to regenerate battle damage like the loss of limbs without too much effort, but she is not able to avoid some forms of damage, due to limits in her programming. This also allows her to shapeshift parts of her body to create extra weapons to offset the loss of some human-type Djibrils. "Angel Super Nova": A Super Form, used once when their main powers fail them, this powers them up, allowing them to break free from whatever danger they are in. It is empowered by the wishes of someone who they especially care about. :In Series 1, Djibril used this to break up the perverted Angelic Ceremony and allowed herself to destroy Rirouge. :In Series 2, Djibril Aries used a variant of the technique to both defeat Dark Djibril and to break free of the dark trance. As far as can be told, Djibril Zero, Super X-32 and Misty Mei cannot use any version of this ability, the former due to being artificially created, the latter due to never appearing in any of the three games as an angel. "Zero Cannon": An ability shown for Djibril Zero in the anime, it allows her to attack demons at more extreme ranges, by firing a beam of positively charged Amore, with the side effect that it cannot be used to defeat Devil Angels, including artificial ones like Super X-32. == Theme songs ==