I used space to carry a lot of supplies to escape famine in ancient times

Gu Qianning and Chu Mohan looked at the happy crowd, their hearts filled with relief. They knew that their road of protection would continue, and they would always fight for the peace and tranquility of the city.

The hustle and bustle of the city echoed in their ears, and the sun shone on people's happy faces. Everything seemed beautiful and peaceful, but Gu Qianning and Chu Mohan were always on edge. Although the threat of the mysterious organization was temporarily eliminated, the potential crisis still loomed over the city like a haze.

In the city's secret research base, Gu Qianning and Chu Mohan are concentrating on new research. In front of them are various complex drawings and high-tech equipment. They are determined to use their wisdom and courage to develop more powerful high-tech weapons and be fully prepared for the upcoming unknown challenges.

"Mo Han, look at the design of this energy core. If it can be further optimized, it may be able to enhance the power and durability of the weapon." Gu Qianning pointed to a drawing, frowned slightly, and fell into deep thought.

Chu Mohan came over and carefully observed the blueprint, with a determined light in his eyes. "Qian Ning, your idea makes sense. But we still need to solve the problem of energy loss during transmission to truly unleash its maximum potential."

The two had a heated discussion around the blueprint, constantly proposing new ideas and improvement plans. They knew that every detail could determine the success or failure of the weapon and the future of the city.

After countless days and nights of hard work, they finally successfully developed the first generation of high-tech weapons - energy pulse cannons. This weapon can emit powerful energy pulses and cause great damage to the enemy. However, in the initial test, they found that the weapon still had some defects, such as insufficient shooting accuracy and long charging time.

"No, such performance is far from enough in actual combat." Gu Qianning clenched his fists with a serious face.

Chu Mohan nodded, "We must readjust the design and solve these problems as soon as possible."

So, they plunged into the laboratory again, repeatedly improving and optimizing the energy pulse cannon. In the process, they encountered technical difficulties one after another, but with tenacious perseverance and deep knowledge reserves, they overcame difficulties again and again.

Finally, after unremitting efforts, the second generation of energy pulse cannon was born. It not only greatly improved the shooting accuracy, but also greatly shortened the charging time, becoming a powerful weapon with real combat value.

However, fate did not seem to want to give them too much breathing space. At this moment, the mysterious organization once again showed its ferocious face. They sent a large number of advanced fighters and mecha troops to launch a new round of fierce attacks on the city. The city's air defense alarm sounded shrilly, and people's faces were once again filled with fear and panic.

"It's time to let them see our new weapons!" Gu Qianning and Chu Mohan led the troops equipped with energy pulse cannons to the battlefield without hesitation.

On the battlefield, smoke filled the air and flames shot up into the sky. The fighter planes and mechas of the mysterious organization came in like a swarm of locusts, continuously pouring firepower into the city. Gu Qianning and Chu Mohan calmly commanded the troops, looking for the best time to counterattack.

"Ready, aim!" Chu Mohan shouted loudly.

When the enemy fighter planes entered the range, "Fire!" With his command, the energy pulse cannon instantly fired powerful energy beams, directly hitting the enemy fighter planes. In an instant, clusters of brilliant flames bloomed in the sky, and many enemy planes were hit and crashed.

But the mysterious organization's attack did not stop because of this. Their mecha troops rushed up quickly, and with their solid armor and powerful firepower, they brought tremendous pressure to Gu Qianning and others.

"Don't panic, concentrate your firepower on attacking the joints of the mecha!" Gu Qianning shouted loudly.

Under her command, the soldiers adjusted their attack strategy, and energy pulses accurately hit the joints of the mechas, slowing their movements. Taking this opportunity, Gu Qianning and Chu Mohan personally operated the energy pulse cannons and launched round after round of fierce attacks on the enemy's mecha troops.

In the fierce battle, the energy pulse cannon consumed energy too quickly and began to malfunction. Gu Qianning was extremely anxious, "Mo Han, we must repair the malfunction as soon as possible, otherwise it will be dangerous!"

Chu Mohan continued to shoot and shouted, "I'll be in charge of the repairs, you continue to command the battle!"

Chu Mohan braved the hail of bullets and quickly repaired the weapon. Sweat soaked his forehead, but his hands remained steady and precise. Finally, with his efforts, the energy pulse cannon returned to normal and once again exerted its powerful power.

As the battle continued, Gu Qianning and Chu Mohan discovered that the enemy seemed to be gradually familiar with the attack mode of the energy pulse cannon and began to take effective evasive measures.

"This is not a solution. We must innovate and make it difficult for the enemy to figure out our attack methods," said Gu Qianning.

Therefore, they constantly tried new tactics in battle. Sometimes, they would use scattered shooting to make it difficult for the enemy to guess the focus of the attack; sometimes, they would suddenly concentrate all the energy pulse cannons to deal a fatal blow to the enemy's key parts.

During one attack, Gu Qianning came up with a brilliant idea. "Mo Han, we can use the resonance principle of energy pulses to make multiple pulses converge at one point at the same time, generating even more powerful destructive power!"

Chu Mohan's eyes lit up, "Good idea, let's try it right away!"

After some debugging and preparation, they successfully implemented this innovative attack method. When multiple energy pulses converged on a large enemy fighter at the same time, a huge explosion occurred, directly blowing the fighter into pieces.

This innovative attack method panicked the enemy and their defense line began to fall into chaos. Gu Qianning and Chu Mohan seized the opportunity and led the troops to launch a full-scale counterattack.

Under their leadership, the morale of the city's defense forces was greatly boosted, and the situation was gradually reversed. The fighter planes and mecha units of the mysterious organization suffered heavy losses and began to retreat.

However, just when victory was in sight, the mysterious organization sent out another secret force, which was equipped with a new type of shield device that could effectively resist the attack of the energy pulse cannon.

"Damn, what is this thing?" The soldiers looked at the impenetrable shield, their hearts filled with anxiety.

Gu Qianning and Chu Mohan quickly analyzed this new type of shield and found that its weakness was its poor resistance to high-frequency energy pulses.

"We must adjust the frequency of the energy pulse cannon!" Chu Mohan said.

After urgent adjustments, the energy pulse cannon once again demonstrated its powerful force and successfully broke through the enemy's new shield.

In the end, under the leadership of Gu Qianning and Chu Mohan, the city's defense forces won a decisive victory. The remaining troops of the mysterious organization fled in panic, and the city returned to peace.

But Gu Qianning and Chu Mohan did not relax their vigilance. They knew that the mysterious organization would not give up easily, and there would be more challenges waiting for them in the future.

At the post-war summary meeting, Gu Qianning said: "This victory is just the beginning. We must continue to strengthen scientific and technological research and development and continuously improve the performance of weapons in order to be invincible in future battles."

Chu Mohan nodded, "Yes, we still need to train more scientific and technological talents to expand our research team."

In the following days, Gu Qianning and Chu Mohan devoted themselves to scientific research. They made major breakthroughs in the intelligence and automation of weapons, and developed new weapons that can automatically track targets and independently determine the timing of attacks.

At the same time, they have also strengthened scientific and technological exchanges and cooperation with other cities to jointly respond to possible global threats.

One day, they received a call for help from another city. It turned out that the city was also attacked by a mysterious organization and the situation was very critical.

Gu Qianning and Chu Mohan led their own high-tech weapons and well-trained troops to provide support without hesitation.

On the battlefield in that city, Gu Qianning and Chu Mohan once again demonstrated their outstanding command ability and powerful scientific and technological strength. They used new weapons to quickly destroy the enemy's defense line and successfully rescued the trapped residents and the city.

This victory made the names of Gu Qianning and Chu Mohan spread throughout the entire area, and they became heroes and symbols of hope in people's minds.

However, they were not blinded by the honor. After returning to their city, they continued to work silently for the defense and development of the city.

As time went by, the mysterious organization seemed to disappear temporarily, but Gu Qianning and Chu Mohan remained vigilant. They continued to improve the city's defense system and developed more innovative high-tech weapons.

During an experiment, Gu Qianning came up with a bold idea: "If we can combine magic with technology, perhaps we can create a brand new weapon."

Chu Mohan agreed with this idea: "But this requires us to have a deeper understanding and research of both magic and technology."

So, they started a new journey of exploration. They visited magic masters in the city to learn the principles and techniques of magic; at the same time, they also communicated with experts in the field of science and technology to explore how to transform magic energy into technological power.

After a long period of research and experimentation, they finally succeeded in integrating magic and technology, creating a weapon that can release magical energy waves - the magic pulse gun.

This weapon not only has powerful attack power, but can also change its form and function according to the user's will, greatly improving the flexibility and adaptability of combat.

Just as they were rejoicing over the birth of new weapons, the mysterious organization appeared again, this time with more powerful weapons and more cunning tactics.

Gu Qianning and Chu Mohan were not afraid. They led their troops, holding magic pulse guns, and once again plunged into the fierce battle.

On the battlefield, the magic pulse gun released brilliant light and powerful energy, repelling the attacks of the mysterious organization time and time again.

But the mysterious organization was not to be outdone. They kept sending new troops and weapons in an attempt to break through the city’s defenses.

At the critical moment of the battle, Gu Qianning discovered the command center of the mysterious organization. She and Chu Mohan decided to lead an elite team to go deep behind enemy lines and destroy the command center.

They shuttled through the enemy's defenses, avoiding numerous traps and attacks. Finally, they successfully sneaked into the command center.

In the command center, they engaged in a fierce close combat with the enemy. Gu Qianning and Chu Mohan defeated the enemies one by one with their superb fighting skills and powerful weapons.

With the destruction of the command center, the mysterious organization's troops fell into chaos. The city's defense forces took the opportunity to launch a full-scale counterattack and eventually completely repelled the mysterious organization.

The victory of this battle ushered in a long period of peace in the city. Gu Qianning and Chu Mohan's names became legends in the city, and their stories were passed down by people forever.