The battle between Ne Zha, Ao Bing, and the Four Dragon Kings raged on, the clash of their powers lighting up the sky above Chentangguan like a violent thunderstorm. The townspeople, huddled in their shelters, could only watch in horror as the fate of their home hung in the balance.

Ne Zha, his spirit burning with determination, launched a series of powerful fire - based attacks at the Dragon Kings. Each blast of fire was a testament to his will to protect Chentangguan and its people. But the Dragon Kings were powerful, and their combined strength was pushing Ne Zha and Ao Bing to their limits.

Just as Ne Zha was about to be overwhelmed by a massive wave of water summoned by Ao Guang, a shield of ice suddenly appeared in front of him, blocking the attack. It was Ao Bing. "I got you, Ne Zha!" he shouted, his voice strained from the effort of maintaining the shield.

Ne Zha looked at Ao Bing, a mix of surprise and gratitude in his eyes. "Thanks, man! I owe you one," he said, his voice filled with new - found trust.

Ao Bing smiled weakly. "We're in this together, remember? We have to protect Chentangguan."

In the midst of the chaos, Taiyi Zhenren was doing his best to support them. He used his magic to create distractions and disrupt the Dragon Kings' attacks. But he knew that they needed a more effective strategy if they were to have any chance of winning.

"Ne Zha, Ao Bing! Try to coordinate your attacks!" Taiyi shouted. "Your powers complement each other. Use that to your advantage!"

Ne Zha and Ao Bing nodded. They had fought together before, but this time, the stakes were much higher. They knew that they had to work together like never before.

Ne Zha unleashed a powerful blast of fire, aiming it directly at Ao Guang. The Dragon King, caught off - guard, quickly summoned a wall of water to block the attack. But just as he did, Ao Bing launched an ice - spear from the side. The ice - spear pierced through the wall of water and narrowly missed Ao Guang.

"Good one, Ao Bing!" Ne Zha exclaimed. "Let's keep it up!"

As they continued to fight, Ne Zha and Ao Bing began to communicate more effectively. They could anticipate each other's moves and work in perfect harmony. Ne Zha would create openings with his fire - magic, and Ao Bing would follow up with his ice - attacks, catching the Dragon Kings off - guard.

During a brief lull in the battle, Ne Zha and Ao Bing landed on a nearby rooftop to catch their breath. They were both exhausted, their spiritual powers almost depleted. But their eyes were filled with determination.

"Ne Zha, I'm sorry for what my kin have done," Ao Bing said, his voice filled with guilt. "I never thought it would come to this."

Ne Zha looked at him. "Hey, it's not your fault. You're different from them. You're my friend, and that's all that matters."

Ao Bing smiled, touched by Ne Zha's words. "Yeah, we're friends. And we'll get through this together."

Just then, a powerful blast of energy sent them flying off the rooftop. It was the Dragon Kings, launching a coordinated attack. Ne Zha and Ao Bing quickly regained their footing and prepared to fight back.

"Come on, let's show them what we're made of!" Ne Zha shouted, his eyes blazing with determination.

And so, the two friends, united by their friendship and their desire to protect Chentangguan, once again charged into battle. Their bond, which had been forged in the heat of the fight, was now stronger than ever. And as they fought side by side, they knew that no matter how powerful the enemy was, they had each other's backs.