Slipping into the darkness of night♪ The F-117 Nighthawk. It's the quintessential stealth unit. This is 1Lt Dorothy "Ghost" Zelko (age 15) of the United States of Liberion Air Force's "Vega" unit, a night witch specializing in night-time bombing raids. Her magic sight and antennas allow her to have clear vision even in the dark of night. Her familiar is the falcon. She often sorties as a lone unit during missions, but she's the type that gets lonely easily.
"Slipping into the darkness of night, (Yoru no Yami ni Magire)" is the lyrics of "Yotaka no Yume (夜鷹の夢 / The Nighthawk's Dream)" by Do As Infinity. This anti-war song was used as the TV theme of ZOIDS Genesis.