Mutsu

Birthday: July 7
Zodiac: Cancer
Age: 24
Height: 158 cm
Weight: 44 kg
Eye color: Light brown
Hair color: Light brown

Mutsu is the merchant fleet Kaientai's 2nd in Command, but is de facto the one running the company. This is because her "natural idiot" leader Sakamoto Tatsuma is always going MIA (missing in action). Things once got to the extent that she had to install a homing device in his pistol, so that when he fired it, the homing device would indicate her to his whereabouts.

She is from Yato Tribe. Her fighting style and extreme physical skills is that of a typical Yato, which made it possible for Gintoki to determine her race.

Formerly she was a space pirate before meeting with Sakamoto. She was the Vice-Commander of the 2nd Division of the Chidori, a group of space pirates that made money by selling slaves. However, upon learning of their plan to kill her after her father's death, Mutsu ended up being a member of the Kaientai as soon as the pirates' ships were taken over by Sakamoto.