Omori Koyso |best| Link

Search results frequently link "Omori Koyso" to downloads for The Geometer's Sketchpad Version 5 , a tool used for dynamic geometry, algebra, and calculus.

Could "Koyso" be a fan-made name for an NPC? On forums like Reddit and Tumblr, users sometimes create "creepypasta" style lore. It is possible a fan-fiction depicted a character named Koyso (perhaps a victim in the lake or a forgotten friend), and the story circulated enough to create a search demand. omori koyso

If a player heard a lore video discussing the "Omori Mine" inspiration but didn't know the Japanese word, "Koyso" is a very plausible phonetic corruption of "Kozan" or "Kosho." Search results frequently link "Omori Koyso" to downloads

The addition of often transforms the phrase into a specific identifier used in digital file sharing and software documentation. It is possible a fan-fiction depicted a character

This fits the game perfectly. The entire narrative is about looking beneath the surface of the water (Kosui). "Koyso" could very well be a ghost word representing the thing the protagonist fears most: the water that hides the truth.