"Old flame, after all, we were husband and wife for a few days," Nathaniel Cooper's pupils contracted slightly, but he still spoke arrogantly.

At this moment, several figures rushed over swiftly from within Tianshui City. Nathaniel Cooper's expression changed slightly. He took out a small black bottle from his chest, drank all the liquid inside in one gulp, let out a low shout, and slammed fiercely into the light barrier. The barrier shook violently and finally shattered.

Without another word, Nathaniel Cooper immediately fled, and behind him, seven female figures eagerly gave chase.

From afar came Nathaniel Cooper's wild roar: "The thing you want is on me. If you can stop me, you can have it."

After they left, a squad of venerable ones piloting Chunshui warships immediately appeared in the sky. These people carefully searched the surrounding buildings and then hurriedly departed.

Taking advantage of the chaos, William Carter quietly pulled Lillian Carter away. Only after they were far from the crowd did William Carter thoughtfully glance at the building across from the equipment shop. He had keenly noticed earlier that during the fight, Nathaniel Cooper had furtively glanced at that building several times.

From the conversations among these people, it was not hard to see that Nathaniel Cooper had some kind of treasure on him, and the purpose of those Tianshui City venerables chasing him was precisely for this item.

After taking a deep look at that building, William Carter had already made up his mind.

"That savage Nathaniel Cooper is so terrifying. They all said he died at the hands of the city lord a few years ago, but now it seems not only is he alive, he's even stronger. Even the Tianfeng Venerable's Absolute Breath Light Barrier couldn't trap him," Lillian Carter patted her chest, still shaken.

"Why do you call him a savage?" William Carter was very curious. Was it because of the way he dressed?

"On the borderlands of the Chunshui Empire, there's a blank realm filled with all kinds of radiation and ferocious beasts. The savages first appeared there. Each of them possesses strength not inferior to the venerables, they're bloodthirsty by nature, and they especially like to raid cities to abduct women. It's said that all the women they take are brutally killed." At this point, Lillian Carter looked in the direction Nathaniel Cooper had fled and couldn't help but shiver.

Seeing Lillian Carter's reaction, William Carter didn't bring up buying a storage card, but a strange look flashed in his eyes, and he became somewhat interested in this savage.

After returning to the Purple Mansion, Lillian Carter was still unsettled. She hurriedly said a few words to William Carter and went to her room to rest. William Carter was happy to have some peace and quiet, and in his own courtyard, he took out the exercise equipment from the disposable storage card one by one.

After studying the equipment for a while, William Carter couldn't help but recall the battle between the savage Nathaniel Cooper and the Ice Phoenix, especially the murderous look in Nathaniel Cooper's eyes when he glanced at him at the end. All this gave William Carter a strong sense of crisis.

He realized once again that he was still too weak and had to seize every moment to become stronger as soon as possible.

What shocked him most was Nathaniel Cooper's incredible speed. From this, it seemed that Nathaniel Cooper was a physical arts practitioner. William Carter admitted to himself that if Nathaniel Cooper attacked him, he wouldn't be able to dodge at all.

He strapped a total of four 5-kilogram lead blocks to his arms and legs, moved around a bit, and the feeling of carrying 20 kilograms all over made him a little breathless.

"Hopefully this will improve my physique, at least increase my speed." William Carter took a deep breath and started running in the courtyard. He vaguely felt that to achieve the goal of training in physical arts, he had to push himself past his fatigue point with intense exercise.

The courtyard where William Carter lived wasn't very big, but it was quite spacious. After running 20 laps around the yard, William Carter felt dizzy, his legs numb and knees weak, and even his arms felt as if he were swinging them through mud.

Feeling he hadn't yet reached his fatigue point, William Carter persevered and ran another 10 laps. This time, his legs felt like they weighed a thousand pounds, each step was agonizing, and his arms hung from his shoulders as if broken.

The tenacious part of William Carter's personality, formed after fusing with the crystal, wouldn't allow him to give up. He couldn't help but recall Nathaniel Cooper's terrifying speed, gritted his teeth, dragged his legs, and ran another 5 laps, finally collapsing to the ground, gasping for breath.

Based on his half-month of practicing the Internal Ascension Technique, William Carter knew that the more tired he was, the less he could relax suddenly. He struggled to sit up, forced himself to raise his arms, assumed the posture of the first diagram of the Internal Ascension Technique, and began to breathe slowly.

Ten minutes later, William Carter's breathing gradually steadied, and a trickle of primal energy circulated within him, his stiff muscles slowly becoming numb and sore. An hour later, William Carter opened his eyes, his stamina fully restored.

"This time, I'll go for 40 laps!" William Carter got up and started running laps again.

On the 35th lap, William Carter clearly felt it was much easier than the first time. This time, he made it to 42 laps before collapsing to the ground. After another hour of practicing the Internal Ascension Technique, William Carter started running laps again.

Time flew by, and by the time William Carter finished his tenth session of the Internal Ascension Technique, it was already late at night.

After removing the lead blocks, William Carter moved his body and found himself much more agile than before. Very satisfied with his training results, William Carter thought to himself, "Now I can run up to 54 laps at most. I'll try to reach 200 laps as soon as possible, then increase the weight of the lead blocks."