Relic refers to a powerful magical tool representing the power of a mage.
The gemstone 'Tril' was, as its nickname suggests, the relic of Kirku.
Eye of Circus or Kirku's Eye
The reason Tril was given that nickname was because of its unique characteristics.
Interestingly, the gem emitted a red light when a performance was happening in front of it.
The bigger, more extravagant, and grander the performance, the stronger the light became.
This phenomenon wasn't limited to the scale of the performance alone.
The better the acting, the more difficult the acrobatics, the smoother the narrative, the more daring the developments, and the higher the completeness of the script, the brighter the light shone.
In the past, it is said that this was used in the Circus Grand Prix to select circus troupes to perform on the Wonder Stage.