Armor

Hisako Ichiki lived in Tokyo, Japan with her brother and parents before joining the Xavier Institute. When the training squad system began, Armor was placed with Kitty Pryde's Paladins Squad with Blindfold and Wing. Armor formed a close friendship with Wing, and even described him as being her best friend.

While at the Xavier Institute, Armor and Wing were attacked by Ord of Breakworld. Armor used her mutant powers to punch Ord, taking him by surprise. Following a brief scrimmage, Armor and Wing were overpowered by Ord, and Wing was injected with the Hope Serum. Depressed by the loss of his powers, he committed suicide in the Danger Room. After Wing's death, Armor, Kitty Pryde, and other Xavier students found themselves trapped in a sentient and hostile Danger Room. Danger eventually fled the Institute. During Cassandra Nova's psychic manipulation and attack of the X-Men, Armor was able to protect Blindfold and a childlike Wolverine from a feral Beast. Armor was with the X-Men when they were abducted to Breakworld by S.W.O.R.D. because Breakworld had developed a weapon capable of destroying the Earth. Ord alerted Breakworld's ruler to the arrival of the X-Men, and they sent a fleet to attack their ship. S.W.O.R.D.'s ship was heavily damaged after the attack, and the X-Men were separated. Armor ended up with Wolverine, who inducted her into the X-Men. Armor was given one of Kitty Pryde's uniforms. Armor aided the X-Men in liberating Breakworld and saving Earth.

Armor later became a citizen of the mutant nation of Krakoa. She helped spread Krakoa's reach by planting a Krakoan flower on the planet Mars. Wanting to make sure that all mutants could have joined the mutant paradise of Krakoa, including those who didn’t answer Professor Xavier’s invitation, Armor started to track down Barnell Bohusk, AKA "Beak", and his wife, Angel Salvadore. With the help of Sage and Boom-Boom, Armor was able to cure Beak’s father's rare form of dementia thanks to Krakoa's wonder drugs that could cure many human diseases. Unfortunately, a group of anti-mutant mercenaries followed the New Mutants on their journey to Nebraska and captured Beak and Angel's kids in order to negotiate for Krakoan medicine.