Crusades, the nation of Japan was destroyed by the Gears. Following this,
those of Japanese descent who still lived were declared cultural treasures and
placed in special colonies. When Baiken was a child, the Gears attacked the
Japanese Institute she was living in at the time. During the invasion, she
witnessed the bloody death of her parents and other people, her right arm was
severed and her left eye gouged out. Amidst the flames, she could only see the
silhouette of That Man, and swore revenge on him (and presumably the Gears as
well) for what they had done. She trained herself in the use of the katana,
and dedicated herself to hunting That Man down.
Baiken was a hidden boss and secret character in the first Guilty Gear.
Presumably, she entered the tournament seeking revenge on the Gears,
In Guilty Gear X, Baiken is still seeking her revenge, hunting down
"monsters," including Gears such as Sol
Badguy and others she considers to be demons, including Potemkin
and Faust. Her first ending has
her nearly killing Testament
and Dizzy, but then letting them go;
her stated reason being that she can't find That Man. Her other ending has her
accompanying Johnny for a drink.
Baiken's design was heavily inspired by Himura Kenshin of Rurouni Kenshin.
Character designer Daisuke Ishiwatari stated that he got the idea when he saw
a picture of Kenshin and mistook him for a woman. The name "Baiken" is likely named after Baiken Shishido, an Edo period samurai.