Cai Yu briefly introduced her new skills to Zhang Chi, which included not only long-distance fire ignition but also a new feature that allowed her to see through all obstacles.
In other words, Cai Yu's abilities had evolved from Thousand-mile Eyes to the Thousand Mile Perspicacious Eye.
This was a further strengthening on top of what she already had.
After knowing about Cai Yu's new abilities, Zhang Chi felt even more envious.
Why do all the companions around me get such powerful opportunities?
Originally, Cai Yu was a pure auxiliary with almost zero lethality.
But after this strengthening, especially with the Perspicacious Eye effect, it basically meant that within Cai Yu's line of sight, she could target whoever she wished.
True, Karmic Fire could not kill, but being burned by it and forcibly entering the victim's perspective was far stronger than the Demon Clan's mind-bewitching abilities.