Ultra-Ancient System: Deceiver of Light

Xia Yan was bound to a system that claimed to be "the heritage of super ancient civilization" at the cost of becoming a "causal observer" across all Ultraman worlds. In the Taiga world, he was Dagu's trainee at the same time, using his precognitive ability to rewrite the judgment of the Kirialodians; in the Zeta universe, he disguised himself as an armory engineer and used Dyna's "Liborium particles" to reversely crack D4 rays; when Taiga's Grimmud was about to revive, the system forced him to switch to the dark Teliga form - those praised feats of salvation were just scripts designed by the system to collect "light causation". It wasn't until the end of the Arcel Chapter that Xia Yan understood that the so-called activating the stone statues was actually turning the previous Ultraman into "firewood of light" that maintained the operation of the system. And every time he saves a world, he accelerates the slide of all universes towards the "restart countdown" set by Noah...