7 is a fiercely independent adventurer, she has been out patrolling the wasteland. She wears a bird skull as a helmet. 7 is made of canvas; because of her exposure to the wastelands, whatever color she once had has bleached away, making her white. She is kind and caring for others, and is very protective towards 3 & 4. Along with 9, 3 & 4, she is a survivor.
She is shown to be gradually soften towards 9 and eventually becomes a close friend.