Chu

Chu is one of Chang's sons, found in Furry Forest. He can be located in the Happy Village, in a small shrine near the Beaver Elder.

How to Rescue
Lean against the nearby saw. Defeat the Bears that emerge and press against the saw again. Eventually, it will break away and hit the Happy Tree. Speak with the Beaver Elder again, and the tree will snap and fall on top of the shrine. You can now enter it via a gap around the side to rescue Chu.