Philosopher's Stone

A Philosopher's Stone is a magical item, with still somewhat unknown origin from the Dark World, said to have almost unlimited demonic powers. It is able to force open a gate to the Otherworld or push a Taimanin into becoming an Inner Demon.

The person knowing currently most about them is Neu Eazlane.

History
Originally it was said that such an object would only appear every 100 or 1000 years but in modern times more and more have shown up. Finding out the mechanics and origin is the goal of Magician and Witch alike.

In Witch of Steel Annerose, Barde Barde searches such an aritifact in order to create a gate to the Otherworld, using it as an energy source, the stone was for unknown reasons the heart of Aishwarya Lai. (Either having used it to gain power or been created in the body of that witch). That stone was destoyed or lost after the battle with Annerose Vajra but others exist.

In Taimanin Asagi Battle Arena, the UFS used such a stone to create Saya Neo and also to research the Otherworld. The stone was used in an event to force an Inner Demon transformation of Yatsu Murasaki into Demon Murasaki however, that was reverted after removing the stone.

In the long past droplets created by a past stone, into the oceans of the Dark World, created the demon Jelly.

Media

 * Witch of Steel Annerose
 * Taimanin Asagi Battle Arena