Jun Hono is Tetsuya Tsurugi's right hand in the Mars settlement army as well as the only woman officer.
Like Tetsuya, Jun is dedicated to defending the Mars settlement having been there her whole life. She is rather popular in the army, looked up to as the only woman in the army for her bravery and dedication. Jun is also interested in Koji Kabuto, while still very close to Tetsuya.
While Jun does not have any special equipment, next to Tetsuya she is one of the top combatants of the settlement's army.