Taiyi did not raise his protective astral aura.
A protective astral aura was actually a divine ability that consumed an enormous amount of mana, yet many Qi Refiners had no choice but to cultivate it—and had to cultivate it.
Because flesh-and-blood bodies were always fragile. Even great cultivators would never willingly use their own bodies to contend against an opponent's spirit treasures. Thus, expending extra mana to protect one's body was the first principle every Qi Refiner needed to understand and strive to uphold. Like a person's fear of death, it was instinct.
As a Nascent Soul cultivator, Taiyi was naturally no exception. Yet he still had not raised it, likely because he wanted to conserve his mana.
In the eyes of the two Great True Lords, this was a display of surrender.
The taller Great True Lord, whose eyes gleamed with sharp light, sneered. His downward gaze carried mockery and the natural arrogance of one who stood above all others, like a deity amid the clouds looking down upon an utterly helpless mortal.
At the same time, the three Wan brothers above had already cast their techniques according to the Three Talents Binding Formation. The crushing pressure that descended bore down mercilessly upon Taiyi, like an ordinary man facing three constables who had already wrapped iron chains around him. It was as heavy as a hundred-pound cangue, making him want to lower his head and sit down for a rest.
"You seem quite calm." The other, somewhat smaller Great True Lord frowned and demanded. He truly could not tell whether Taiyi was simply fearless or possessed some means of response. By all rights, Taiyi should have long since burst into tears, handed over everything he knew and possessed, and begged them to show mercy and spare his life.
"My