C454 Heaven and earth sword formation

Swish!

After the group of Children of the Xu Family took out their small swords, they quickly formed seals and all of them transformed into three-foot-long flying swords, flying in the sky, with the tips of the swords aimed straight at Yu Tianyu.

Yu Tianyu's entire body shook, what kind of thing was Heaven and Earth Sword Formation, could it be a powerful offensive formation?

For a moment