Terng (滕) is a Frog spirit hailing from the other side of the new Republic City Spirit Portal. Residing in the aquatic meadow and later the Republic City Spirit Wilds, he lived peacefully alongside humans in the balance Avatar Korra fought to achieve long ago. A skilled warrior, Terng has been seen as a protector to weaker spirits. After Kai's arrival in the United Republic, he journeyed into the Spirit Wilds, meeting with Terng. Becoming life-long friends, Terng later became the pro-bender's companion and personal mount. Following Kai's induction into the UR military, Terng decided to serve alongside his friend, continuing his pledge to protect the spirits of the United Republic.