Technology & Combat Characteristics
The Sefer Rasiel, whose name means 'Book of Angel', is the GN-XXX Gundam Rasiel combined with two of GNR-000 GN Sefer's components – the Core Block and the GN Proto Bits. The combination process can occur during combat.
As the Core Block is directly connected to the Rasiel's GN Drive, its thrust power is enhanced, and this in turn grants the Sefer Rasiel higher mobility than the Rasiel itself. In terms of combat capabilities, the GN Proto Bits served the Sefer Rasiel as remote weaponry and also as fixed beam guns, adding to the Rasiel's GN Beam Rifle, GN Shield and GN Beam Saber. The Bits' presence not only allows Sefer Rasiel to fight more effectively against multiple enemy units than the Rasiel, but also against higher number of enemy units as well.
The Sefer Rasiel, without its GN Drive and powered by the GN Condenser within the Core Block, was lost in space following its victory over the CB-001 1 Gundam in 2302 AD. In 2314 AD, Hixar Fermi departed to recover the lost Sefer Rasiel and its deceased pilot, Grave Violento, using a Lab Transport vessel and what seems to be another Sefer Rasiel with additional boosters. This replica Sefer Rasiel uses the second Gundam Rasiel created in 2312 AD, which is powered by a large GN Condenser and based on the remains of the Innovators's GN-XXXB Gundam Rasiel Black. It is unknown if the GN Sefer's parts are from the Innovators' GNR-000B Black GN Sefer or from one of the original GN Sefers.
History
Grave and his Rasiel were caught in a trap set up by a HRL unit to capture the Gundam, which was accidentally seen by two of the unit's members during one of Grave's earlier mission. The HRL's ploy also made use of a large Union mobile suit force comprising 16 VMS-15 Union Realdos. To reduce the chance of being discovered, Grave stops the Rasiel and activated its optical camouflage. After a while, reinforcements arrived in the form of three GN Sefers led by Hixar.
Grave then disabled Rasiel's optical camouflage and soar into the sky. The Rasiel combined with some parts of the three GN Sefers to form Sefer Rasiel Form 3. The remaining parts of the GN Sefers circled the battlefield from a distance; they were spreading GN particles, and creating a larger radar and communication jamming area. Grave attacked the Union Realdos using the Sefer Rasiel's GN Proto Bits, and looked out for activities on the ground as that was where the HRL force was hiding. Sefer Rasiel was then hit on the side, and Grave spotted the MSJ-06YIII-B Tieren Kyitwo. He launched the GN Proto Bits as remote weapons at it. Amazingly, the Tieren Kyitwo dodged the Bits' attacks that were fired from extremely close range, and even managed to shoot them down. After exhausting all of the Bits, Grave prepared for close combat. Suddenly, five more GN Sefers led by Gundam Meister 874 appeared; they were backup prepared by Veda. Sefer Rasiel Form 4 was formed, and its fierce attacks made it hard for Tieren Kyitwo to dodge and attack simultaneously.
Hixar was confident that victory was near, but Grave and 874 knew they were near the time limit. Grave stopped his attack and the Tieren Kyitwo left. There was a need to remove evidence of the Gundam's attack before Union's reinforcement arrive. The HRL force that the Tieren Kyitwo belongs to was unlikely to divulge Gundam's existence and would attack again, so letting it go was fine.
A group of mercenaries accidentally captured footage of Sefer Rasiel's battle against the Tieren Kyitwo, and laid a trap for Grave. Despite having no support from the GN Sefers, Grave still managed to defeat the mercenaries using only the Rasiel.
In space, Grave, 874 and Hixar were testing Sefer Rasiel Form 5. To complete the form, four GN Sefers were used and they were piloted by Hixar, 874 and two Haros. The GN Sefer team was led by Hixar, and although 874 was not an official pilot of the machine, she joined them as she was tasked to collect the test's data. The sight of Sefer Rasiel Form 5 awed the pilots, except for 874, who asked Grave to test the Bits. Grave launched the Bits but could not control them properly. 874 asked him to transfer some of the Bits' control to her; she also requested for Hixar's help. 874 and Hixar's GN Pods can control the Bits to a certain extent, and the transfer of the Bits' control was done via Veda.
Grave remarked matter of factly that controlling 8 Bits simultaneously was difficult. Hixar misinterpreted his mood, and tried to cheer Grave up by saying it would be fine as he and his GN Pod could provide support. 874 agreed but added that it might not be enough. She felt that to solve the issue there might be a need to get more pilots for the GN Sefers, or replace the current pilot with someone better. Aware that 874 was implying that he was not good enough, Hixar pointed out that training can improve one's skills. To his surprise, Grave agreed and wanted the training to start right away. Hixar tried to wiggle out of it but failed miserably.
Grave was mortally wounded by gunshots fired by Hixar, who was being mind controlled by Beside Pain. Treatments by Joyce B. Moreno managed to restart Grave's heart, despite this, Grave was aware his death was only being delayed. He requested Moreno to prepare his pilot suit and contact Ian. As per Grave's instructions, Ian switched the Rasiel into Sefer Rasiel. The Rasiel's GN Drive was currently in 874's GNY-0042-874 Gundam Artemie, which was now fighting against two CBY-077 GN Cannons and Beside Pain's CBY-001 1 Gundam in space. Grave's plan was to use the GN condenser in the GN Sefer's Core Block to activate the Rasiel in place of a GN Drive. Ian estimated the condenser could only sustain Raisel for at most 20 minutes, and this would be further reduced with the use of beam weapons. Grave calmly reassured Ian that it was enough as most of his battles had ended within 5 minutes. He added the use of beam weaponry would naturally be limited in a short battle.
Grave thanked Moreno and Ian, and launched in the Sefer Rasiel. After Sefer Rasiel reached its maximum acceleration, Grave stopped the release of GN particles and let the MS drift into the combat zone. Upon reaching the battlefield, Grave used the Sefer Rasiel's GN Shield to block a fatal shot fired at the Gundam Artemie. He then told Beside Pain to stop, but the enemy refused to comply. Thus, Grave decided to end this by force. To avoid wasting GN particles, he discarded the Bits and the GN Beam Rifle. He then landed the machine on an asteroid to limit the enemy's attack directions. This was also meant to provoke Beside Pain, who Grave observed had a character flaw: he had an extreme dislike for things not going as planned. Since Grave's machine had limited particles, he decided that provoking Beside Pain was the best tactic. Beside Pain drew out 1 Gundam's GN Beam Saber and closed in. To conserve particles, Grave drew his GN Beam Saber only at the last moment. As the two GN Beam Sabers clashed, Beside Pain activated his special ability, which allowed him to mind control other Innovades linked to Veda temporarily. He ordered Grave to stop, but it had no effect. Instead, Sefer Rasiel knocked off 1 Gundam's GN Beam Saber and sliced into the machine. Beside Pain's ability did not work as Veda had deemed Grave as deceased and severed its link with him. To prevent Beside Pain from transferring his data into one of the Innovades in the GN Cannon, and thus saving himself, Grave quickly sliced apart the 1 Gundam's cockpit.
20 minutes elapsed since Sefer Rasiel's launch, its GN particles were almost exhausted and Grave had less than 5 minutes left. He sent his last message, a voice-only transmission, to encourage Hixar. Rasiel, having exhausted all of its particles, and Grave, having finished all his duties, then quietly began a journey into the abyss.
In 2314 AD, Hixar's Rasiel (the Rasiel Black repaired and repainted in the original Rasiel's colors and given the original's ID by Celestial Being in 2312 AD) was fitted with GN Sefer parts (presumably from Hayana's unit). This replica Sefer Rasiel also had additional boosters, and was used by Hixar together with a Lab Transport vessel to recover the original Rasiel, and the deceased Grave within, that were drifting in the vicinity of Jupiter.