Mirror of the past

Mirror of the Past (과거를 비추는 천칭, Gwageoleul Bichuneun Cheonching), also known as Scale of the Past, is a device that shows the past to people who enter the Hidden Floor. After analyzing the past it sends Regulars to their proper place in the Hidden Floor and generates a Sworn Enemy for everyone.[1]


Scale of the Past has a Combat Mode. When activated, additional ringed constructions appear around the Scale. It has regeneration capabilities. Mirror of the Past can also summons many small drones, which have offensive powers.[2]

Image Gallery

Show / Hide Image Gallery

Notes and Trivia

  • Mirror of the Past seems to have it's own personality.[1]
  • The Mirror of the Past and the Mirror at the End both make up the foundation of the Hidden floor.


  1. 1.0 1.1 Vol.2 Ch.264: ??F - Hell Train: The Hidden Floor (1)
  2. Vol.2 Ch.302: ??F - Hell Train: Power (1)


Unclassified Items
Devices Section
Unclassified Device
Weapons Section
Basic Weapons
HookNeedleShinsu BombSpearSwordWand
Unclassified Weapons
Community content is available under CC-BY-SA unless otherwise noted.