Iron

Iron is a secondary protagonist in Shingeki no KyoGem. A Homeworld Gem left behind after the Rebellion, she has now become the loyal personal guard of Willy Tybur.

Personality
Iron is strong-willed and assertive. Despite her outwardly cold demeanor, she is shown to care deeply for others and has a strong sense of loyalty.

Iron has a deep sense of honor. She is greatly resentful of Bloodstone and her "cowardice" and how she ran away with Karl Fritz.

Story
Iron is introduced in Chapter ???.

Relationships
Lara Tybur - Iron and Lara are shown to be very close with each other. Iron helped train Lara when she first inherited the Warhammer Titan, and Lara looks up to her as her mentor. She is shown to be extremely protective of her, and it is implied that she may have had romantic feelings towards Lara. It is not known if Lara reciprocated these feelings.

Willy Tybur - as the patriarch of the Tybur family, Iron respected him as her superior.