The Hidden Shoal (隠し浅瀬, Kakushi Asase) is an area accessible from the Forest Pier.
The Hidden Shoal is a light area covered in a shallow sea, embodied by viridian islands in odd swirling formations, with coral scattered throughout the area.
The islands form various swirls and shapes, one large group forming an Aztec-styled man.
Several featureless transparent people slowly wade the waters, destined to wander until time's unwinding.
- This world highly resembles Pastel Shoal World from Yume Nikki, up to the point of having a saturated pink-striped conic house deeper in the area. It is similar to the False Shoal in this regard.
- The conic house once led to a room that houses elements similar in nature to Poniko's room, where the light switch has a 1/45 chance of triggering an event that is not unlike the Uboa event. Interacting with the monster that the girl has transformed into from there will send her to a black area, surrounded by the five people from the room's posters, waking Urotsuki up. Following its removal, later versions have set the house's destination to the red area in the Victorian Drains. Despite that, the room can still be accessed using Debug Mode in Map 0659, with the light switch's functionality intact, and going through the exit will show a dialog that the link to the area has been removed.