Unlike standard elemental or mana-based systems, the magic in this world is tied to the concept of weaving and threads Tactical Flexibility:
To get the most out of The Dungeon in Yarn " (Yone Kinji – Danchi no Ko)
: When you enter a floor, you don't just see monsters; you see "Echoes"—low-opacity silhouettes of the last three players who cleared (or failed) the room.
Special events that trigger based on how "well" or "efficiently" the player is managing their "Black Company" of explorers.