Trace Material, Light Cone Ascension Material

Key of Knowledge

Details
A mythical key that appears in the hands of the sages of the worlds. Used to level up Traces moderately for Erudition characters.
Story
It can unlock the mysteries binding the truth of the world and grants knowledge beyond the understanding of humans.
No matter how the wielder attempts to display their possession of the key, no one but themselves can see its form. Some people believe that to be a gift from the heavens, while others think it's a sign of mental disorder.

"I had a dream of molecules coiling up into a loop like a snake biting its own tail. I woke up realizing that this is the answer I've been looking for all along!"
Source
Calyx (Rivet Town)
Omni-Synthesizer — Material Synthesis
Embers Exchange
Omni-Synthesizer — Material Exchange
Used By
Omni-Synthesizer
Traces Activation MaterialsTraces Leveling Material
Traces Activation MaterialsTraces Leveling Material