Kimberly Tatsuo

"Aaron I've always admired you, now I just want to be with you."

- Kimi expressing her feelings to Aaron

Master Gunnery Sergeant Kim Tatsuo (SN: 6576-12624-KT) was a Human staff non-commissioned officer who served with the UNSC Marine Corps during the Human-Covenant War. Kimi was a highly intelligent Marine, serving with various units of the Naval Special Warfare Command. Tatsuo played a role during the course of the Great War and fought at major battles such as Earth, and the events at Installation 05, and at the Ark.

Kimi was a subordinate of Aaron Bryant while under Marcus-211 during the Battle of New Mombasa.

Human-Covenant War
While fighting a battle in the streets of New Mombasa, Marcus-211 saw an opening in the Covenant forces and decided to turn his attack force on the exposed area, leaving his other men, Aaron and Kimi to die. Most of the marines under Aaron's command died and Aaron himself believed Marcus abandoned them all without good reason, though Marcus would later state that he did it to save the lives of more of his soldiers.

Thanks to Kimi's intervention, Marcus was able to explain his behavior at the battle, making Aaron understand that his choice saved the lives of many soldiers, and moreover complied to Hood's orders about opportunism in combat. Aaron thanked Kimi and the two began seeing each other.