Imagawa Hikogorou Mari Ujizane

Mari is the daughter of Imagawa Yoshimoto, who was defeated by Kuon at the Battle of Dengaku Hazama. While her manner is childish and innocent, she was raised as a leader first and foremost. As the child of a daimyo, she was raised to see death in battle as a matter of course and an inevitability of fate.

Spoiler

As such, she does not resent the loss of her mother, though she does grieve.

Like Kazuha, she as a student of Tsukahara Bokuden and is a master of the sword.