Shyahtsoo III

Shyahtsoo, Grandpa Nat’s childhood best friend, has an unnamed granddaughter who was only seen briefly in “Grandpa's Drum” for a few seconds. Not much is known about her or her grandmother, except that she looks just like her grandmother. She appears to be between the same age as either Molly, Tooey or Trini.

In When the Cold Breeze Blows Away,she will be mentioned and appeared that she serves as the specialist of Grand Alliance and Molly.

According to Su Ji-Hoon, she is known as Shyahtsoo III, hence her grandmother's name.