The Fiend King of Firmament Ascension Palace was the first to arrive.
Against the attack of the Fiend King, the Martial Dao Prime Body did not dare to be careless.
However, when the Fiend King attacked, he did not summon his Grotto-heaven right away.
He was not the only one. The four Fiend Kings charging over from behind did not release their Grotto-heavens either.
The five of them were not being overconfident on purpose. In theory, Fiend Kings could crush Perfected Fiend cultivators with a single finger!
Furthermore, five Fiend Kings attacked at the same time. It would seem like they were making a fuss instead if they summoned their Grotto-heavens.
Even Grotto-heaven realm experts would rarely summon their Grotto-heavens right away in a fight, let alone against a Perfected Fiend.
Sensing that opening, the gaze of the Martial Dao Prime Body intensified!