|Affiliation||The Sapphire Fist|
|Base of Operations||Midwestern Ankabra|
Koh Stem is a main protagonist of the series. Koh is slim with brown skin, has purplish black, wavy hair, has purple eyes and is an attractive rebel. Koh is also described as being loud and impatient, though she is also understanding and kind. Before the adults disappeared, Koh lived peacefully in her village with her parents, who taught her how to distinguish plant life. Koh dislikes animal riding, and most animals, but loves owls and other birds. She was quite rowdy before the adults disappeared, finding friendship in Iziko Tirus and Link Saurus. After the adults disappeared, she helped Link take charge and they got together.
Koh first realizes she has the Power when she flipped out of the way of a raging wooly rhino. Her parents pushed her to train harder and she became quite experienced in her power, unlike the other Powered children of her tribe.
Koh can go from one motion to another effortlessly, effectively dodge attacks, swing from things easily, sprint, do back-flips and numerous other gymnastic, athletic and martial implements with little effort. Agility is "the ability to rapidly respond or change by adapting its initial stable configuration", the ability to change the body's position efficiently, and requires the integration of isolated movement skills using a combination of balance, bodily coordination, speed, reflexes, strength and endurance.