Lian Xin, Hua Min'er, and the others were all Ling Tian's women. Back then, he had been unable to stop Lian Xin from burning her soul, and the guilt had weighed on him ever since. He wouldn't let anything like that happen again. Even though he could see Hua Min'er was safe, murderous fury still surged within him. He wanted to wipe out everyone who had pursued her.
Most importantly, Ling Tian had the strength to back it up. Even if every pursuer burned their Origin Bloodline Power and joined forces against him, he could still protect Po Di and the others without bringing them into his Small World. After taking control of the formation and merging it with his own, he had increased its power by several levels. He was confident he could withstand every cultivator's attacks, even if they all burned their Origin Bloodline Power.
On second thought, Ling Tian could bring Hua Min'er into his Small World, but Po Di and the others were still wary of him. Convincing them wouldn't be easy, and Ling Tian couldn't be bothered to try. As things stood, he could keep them safe without bringing them into his Small World.
With that, Ling Tian controlled the Myriad Sword Demon Extermination Grand Formation and unleashed its attack. Its power was astonishing. Even though the formation was still incomplete and geared more toward defense, its attacks could easily kill Near-Saint Eighteenth Heaven cultivators—and could even hold its own against Near-Saint Nineteenth Heaven cultivators.
Sure enough, the pursuers' expressions turned grim when they saw the energy arrows. They knew that if they were hit, they would be severely wounded at best. Yet they didn't dare retreat. If they did, Ling Tian would certainly pursue them, and their chances of survival would still be slim.