1. Houkou (Not to be confused with the Gobi Bijuu, they are from the same family, but where the Gobi can control elements the houkou can only control nature.)

Five-Tailed Dog
Pronunciation: hoh-koh
Areas Found: Anywhere, though often in forests, wooded areas, etc.
Special Powers: Illusion, Earth, Water power
Danger Level: Varies
Likes: Nature, trees
Dislikes: Disrespect for or harmful will towards nature
The Houkou is a type of youkai not widely heard of, although this is not surprising as they tend to be very solitary. Many stories have linked houkou with trees, saying that they are tree spirits, while others maintain that they merely tend to be forest-dwelling beings and prefer the surroundings. Whatever the explanation, however, houkou seem to have some things in common.
Any houkou may use all tails in order to influence the elements and cause things such as earthquakes and other disasters. This is typically not done unless the houkou or their habitat is threatened. Many stories link the fury of a houkou to the endangerment of a beloved forest or tree.
Otherwise houkou are entirely peaceful and wise, owing their mastery of the elements to their contemplative natures. Many stories maintain that they are white all over, although some have mentioned houkou of other colors including honey-colored, and closer to that of a shiba inu. Some have put forth the possibility that houkou are actually closely related to kitsune, which may be due to their similar appearances and multiple tails.