The Tchiki nut bush is a bush that contains Tchiki nuts. Before and after the rescuing King Awowogei Recipe for Disaster part, this contains no nuts. It is accessed by climbing into a hole located in the Ape Atoll Agility Course. You need a ninja greegree to access it, as well as the agility course.
The bush seems to have the same starry aura surrounding it as a magic tree.