The All-Seeing Forest is a large world accessible from one of the rooms in the Winter Village.
Features
This world is a large forest filled with pine trees and purple flowers. From the entrance, the player can walk down a rather straightforward dirt path. As you continue through the area, eyeballs will gradually begin to appear on the trees and the flowers. At the end of the path lies what appears to be a fireplace, continuing north from here will lead to a bridge that goes into a crossroads.
Taking the right path leads to a tombstone, taking the player to an isolated area upon interaction. This area is a small pathway lined with flowers ending in a character crying next to a strange item, presumably mourning the loss of someone. Taking the left path on the bridge will lead to another crossroads, the southern path leading to a well and the northern path leading to a turtle sitting in front of a lake. Interacting with the turtle will give you the Turtle effect.
Taking the northern path on the bridge will lead to a secluded area with a large wall. The wall has a small hole to the right that cannot be entered unless the Turtle effect is used. Doing so will activate the Turtle Hole event. Inside the wall are a group of cyclops creatures called Dudes dancing around a large hole. As you approach the hole, the Dudes will suddenly stop to angrily stare at you. One Dude will run in from the left, picking up Kubotsuki and throwing him down the hole as the music becomes more distorted. After that, Kubotsuki is shown falling down the hole with huge eyes in the background staring at him. He eventually lands at the bottom, with a number of bones scattered around and graffiti on the wall. There is currently no way to exit the hole without waking up or using the Box effect.
Directions
Kubotsuki's Nexus → Winter Village → All-Seeing Forest
Trivia
The graffiti seen at the bottom of the hole is a reference to Kilroy was here, a meme originating from World War II.