Kei Nagase (AC5)

"No, Blaze is leading, I'll protect his six o'clock. And I'm not gonna lose another flight lead."

- Kei Nagase, on her promotion to flight lead

Kei Nagase, callsign "Edge", is a female pilot of Ace Combat 5, and a part of the War Dog squadron, later the Ghosts of Razgriz. She serves as Blaze's wingman during the Circum-Pacific War.

History
Little is known of Nagase before she joined the OADF. Kei's favorite book is A Blue Dove for the Princess, which she loved since she was a little girl. Some of the pages were missing, and Nagase was attempting to write in the missing pages from memory throughout the Circum-Pacific War.

Kei Nagase is a fighter pilot most famous for being part of the elite Razgriz TFS during the Circum-Pacific War and also for playing a pivotal part in the war's end. She was born on an unspecified date in 1987 in Osea, and little is known of her early years. A relative of hers, some say her sister, served on Air Ixiom, and was involved in a pivotal battle in the Continental War of 2005. This event inspired Kei to join the OADF around 2008, and she advanced to the rank of 2nd Lieutenant by 2010. While on a routine training exercise in September 2010, her flight was attacked by MiG-29As of unknown origin. Only Captain Bartlett, she and a journalist named Albert Genette survived. She was later assigned to the #2 position on Wardog Squadron, with Davenport on #3, and a man known only as &quot;Blaze&quot; on #4.

On another mission that the OADF has called "Shorebirds", Nagase participated in an intercept of an SR-71 that penetrated the Osean ADEZ. The SR-71 Blackbird ignored warnings and began to leave the area. Wardog Squadron caught 12 unidentified fighters on their radar, who engaged them on sight. Disobeying orders, Wardog Leader Jack "Heartbreak One" Bartlett ordered Wardog to engage the fighters. All fighters were shot down with no Osean casualties.

The next day, Nagase again went up with Wardog to intercept 3 flights of UAVs that photographed Sand Island AFB, where she was stationed. All UAVs were shot down, but unidentified fighters once again closed in. Wardog engaged and splashed all fighters. Suddenly, a boat floating nearby launched a missile at Nagase's F-5E Tiger II. She banked wildly to avoid it, but the missile was relentless. Heartbreak One crossed her path and diverted the missiles direction, and the missile impacted his starboard wing. He bailed out over the Ceres Ocean.

Wardog was immediately scrambled to Port St. Hewlett, upon hearing Yuktobania had declared war on Osea. Although outgunned by the Yuktobanian forces, Wardog along with VFA-206 were able to get the survivors of the 3rd fleet to safety. They returned to Sand Island afterwards. Wardog 3, Alvin Davenport was happy to get relaxation and retired to his quarters, while Nagase went to hers and wrote in a book. Suddenly, the air raid sirens sounded. A Yuke bomber force had been spotted heading for Sand Island.

Wardog clambered into their F-5s, but no maintenance was performed and Wardog 3's engines couldn't start. Once they got in the air, Wardog managed to shoot down all attacking aircraft. Lieutenant Colonel Ford, from the mainland, was scheduled to replace Captain Bartlett as the new leader of Wardog, but was shot down by Yuktobanian reinforcements. A second wave of bombers approached, but were quickly taken care of. Wardog returned to base with a new squad member: Hans Grimm, call-sign "Archer".

Later, the 4 pilots were assigned an escort mission in the Eaglin Straits of Osea, to make sure 3 aircraft carriers arrived at a rendezvous point safely. Midway through the mission, the group comes under attack from Yuke Sea Harriers and F-35C Lightning IIs. Wardog managed to shoot them down without any trouble. But suddenly, a burst missile appeared on radar and destroyed the OFS Buzzard. A second burst missile later sunk the OFS Vulture.

The Kestrel was the only carrier that survived, and its only pilot left alive was Marcus Snow, callsign Swordsman. Wardog was too far away from Sand Island to return, and a tanker plane could not be called to their position, so Thunderhead ordered them to head to Heierlark AFB, in North Osea. There, they refueled, rested and told stories to the eager cadets stationed there. The next day, Wardog took the cadets back to Sand Island, having to stop at every base on the way to refuel, as the cadets were not trained in aerial refueling yet.

The next day, she was thrown into the air again by a surprise Yuke amphibious assault on Sand Island. The rookies from Heierlark were flying along, but they were inexperienced, and some were shot down. During the battle, the Scinfaxi, a submarine aircraft carrier, launched ballistic missiles at Wardog. All of the rookies were shot down, and Nagase, along with her squadron, tried to evade the missiles. The Arkbird, a spaceship equipped with a laser cannon, fired on the Scinfaxi and destroyed its ballast tanks. The sub surfaced, and Wardog Squadron destroyed it. The battle was a success for Osea.

During an Osean POW rescue mission in the Glubina region of Yuktobania, Nagase was shot down by an enemy SAM. Due to the harsh weather, a rescue operation was not able to be carried out, and one helicopter crashed. Cptn. Nagase survived and managed to locate the crew, getting them to a shelter before the storm approached. The next day, an OADF rescue operation was mounted, but Yuktobanian patrols were in the area searching for her. She hid the crew and managed to capture a group of soldiers with her M9 sidearm. She and the crashed crew were safely airlifted out of the area.

Nagase went on to become famous and notorious in both Osea and Yuktobania respectively, as her squadron won battle after battle. Unfortunately, the thought of war sickened her, and she conveyed her disgust to her squadmates, much to their dismay. When Wardog 3, Alvin "Chopper" Davenport was shot down over November City and later killed, she was wrought with grief and sadness. This caused her hatred of war to increase.

When Wardog was betrayed and framed as Yuke spies, Wardog escaped from Sand Island. They were shot down over Solo Islands, north of Sand Island. Reports indicate they did not survive, and the OADF Central Command has listed her as KIA.

Cpt. Nagase survived the Solo Island Incident, as evidenced by sightings of her aboard the OFS Kestrel (CVN-30). Wardog Squadron was reformed into Razgriz Squadron, with a black paint scheme and a logo of the Demon Razgriz, with Marcus Snow as a new member. Razgriz was responsible for the rescue of President Vincent Harling, who had gone missing several months prior.

The Razgriz had exposed the real instigator of the war; Belka, who were angered by their humiliating defeat in the war in 1995. Nagase and her squad shot down one of the Belkan Aggressor Squadrons, Ofnir in Payavlenie Ravine in Yuktobania and Grabacr Squadron, when they rescued Yuke Prime Minister Serozyah Nikanor and former Wardog Leader Jack Bartlett from a Yuke prison. The previous day, Razgriz had destroyed the Belkan-controlled Arkbird, which was headed for a nuclear strike on Okchabursk. The attack was meant to further escalate the war with Yuktobania.

On December 30th, 2010, Razgriz, along with allied Yuke and Osean squadrons, assaulted the Belkan headquarters in Sudentor, where the control center for the SOLG (Strategic Orbital Linear Gun) was located. Despite heavy resistance from warmongering Yuke, Osean and Belkan forces, as well as the SOLGs attacks, Razgriz entered the control tunnel and destroyed the core.

On New Year's Eve 2010, Razgriz was scrambled for one final mission. The SOLG was descending on Oured, Osea's capital city. It still carried several nuclear warheads. If it struck Oured, millions of people would die. While Osean citizens slept peacefully and unknowingly in the early hours of December 31st, 4 planes embarked on a mission to save their lives. While en route to the SOLG's intercept point, Razgriz was met by Grabacr and Ofnir Squadron, intent on stopping them. A final climactic battle was fought, all Grabacr/Ofnir pilots were killed. The SOLG emerged in front of them, heading to its descent point. Nagase and her squad-mates fired on the SOLG, but it was Blaze who delivered the fatal blow. The SOLG exploded in a bright flash over Oured, waking up the entire city. At the end of the game, it is found that she, along with her squadmates have disappeared into history.

Quotes

 * "It's like this enemy came straight out of the demon legends."
 * "Razgriz, the demon from the world of fairy tales."
 * "You're all idiots! All of you!"
 * "I vowed to myself that I would never lose another flight lead. So please, Blaze, let me fly with you just for a little longer."
 * "Anything built by human hands can be destroyed. And this is no exception!"

Trivia

 * Edge bears an uncanny resemblance to Reiko Nagase, a prominent character from Namco's earlier Ridge Racer series.
 * In Ace Combat 2, one of the selectable wingmen is also named Kei Nagase.
 * In Ace Combat 04, there is a civilian plane that's piloted by an officer named Nagase.
 * In the early missions, Edge tends to keep close to Blaze's plane, regardless of the Wingman Commands the player issues (unlike his other wingmen). This probably reflects her in-story promise to "never lose another flight lead."
 * Kei_Nagase_in_Assault_Horizon.jpg June 2011 cinematic trailer for Ace Combat: Assault Horizon features a portion at 0:58 where William Bishop and the rest of the Warwolf Squadron walk inside a hangar. In the rear of the group is a woman bearing an uncanny resemblance to Kei Nagase.