is the youngest child of Osamu and Sada. Growing up with four older siblings, she was thoroughly spoiled by them and her parents' families. As such, Mari had wants for little growing up, resulting in the cultivation of a somewhat frivolous personality. However, she is a kind girl at heart, looking to help others in times of need while growing strong enough to protect the place she calls home. Because of her inherited blonde hair and violet eyes, she has been officially dubbed by her family members, who note that she resembles her mother almost exactly, minus the hairstyle Mari uses for differentiation. This has translated into one of her greatest wants; the desire for her own identity independent of Sada, despite the plethora of similarities between the two.