I painted an aircraft carrier on the courtyard house for Dongda University.

The next morning, Zhou Weiguo drove Tian Zao and Natasha out of the east courtyard.

As Natasha got out of the car to lock the gate, Tian Zao pouted and turned her face away, her cheeks puffed out like an angry little pufferfish.

Zhou Weiguo was amused by her appearance and gently pinched her soft cheek: "Silly girl, are you still angry? Didn't you say you wanted to live a happy life as you please? Go and deal with your work first, and I'll try to transfer you to the neighborhood office here later. It'll be convenient since we live close by."

Tian Zao rolled her eyes at him, her tone reproachful: "Hmph, dream on! You've taken all the advantages, but you haven't even honestly told me about your own situation!"

Zhou Weiguo scratched his head awkwardly and said with a forced smile, "Tonight, I promise I'll tell you everything, okay?"

"I don't believe you! I'm not going to be a lamb to the slaughter, and I'm not going to see you tonight!" Tian Zao turned to look out the window, her voice softening slightly.

Zhou Weiguo held her hand and gently persuaded her, "Listen to me, I'll pick you up tonight. You have nowhere to stay right now, and staying in the neighborhood office's dormitory isn't convenient. Staying with me will at least give us some support."

Just then, Natasha locked the door and came over, laughing and teasing, "Oh dear, it seems you've forgotten your old flame for someone new. I was just locking the door, and you two are already all lovey-dovey?"

Zhou Weiguo smiled but didn't say anything. He started the car and drove away.

Unbeknownst to them, Jia Dongxu and Yi Zhonghai were staring at their car from the alleyway not far away, their eyes filled with excitement.

"Master! Did you see that? Zhou Weiguo just touched that woman's face and held her hand!" Jia Dongxu lowered his voice, his tone barely concealing his excitement.

Yi Zhonghai glared at him sternly: "Shut up! The person's gone. What are you shouting about without any evidence? Let me think of a way. This time, we must take down that Zhou Weiguo kid in one fell swoop!"

Zhou Weiguo first took Tian Zao to the street office where she worked, and after watching her get out of the car, he drove straight to the steel rolling mill.

The carriage fell silent. Natasha smiled and said, "Little master, I've been so cooperative with you, shouldn't you tell me what's really going on with Tian Zao?"

Zhou Weiguo was prepared, knowing that Natasha would definitely ask. After thinking for a moment, knowing that Natasha was absolutely loyal to him, he told her everything about Tian Zao being a time traveler as well.

Natasha looked surprised after hearing this: "So Tian Zao is from your hometown, that's amazing!"

Zhou Weiguo nodded, then quickly changed the subject: "Natasha, how much do you know about ballistic missile and nuclear warhead technology?"

Natasha pondered for a moment before replying, "I'm not very familiar with manufacturing techniques; my knowledge mainly focuses on materials science and metallurgy. However, if you can provide relevant technical data, I should be able to help with materials research and development, and even the purification of nuclear materials."

Zhou Weiguo nodded and didn't say anything more, but his heart felt heavy.

The car quickly arrived at the steel rolling mill. He rushed into the small office in the workshop, locked the door behind him, pulled out a large sheet of white paper and began to write and draw, pondering the feasibility of manufacturing ballistic nuclear missiles.

But the more he wrote, the more frustrated he became: "I just can't get past the enriched uranium hurdle..." He sighed, staring at the "Uranium-235 enrichment 90%" on the paper.

Currently, all of China's enrichment equipment relies on imports from China. If the other party breaks the agreement and stops supplying uranium hexafluoride next year, subsequent research will be impossible.

Not to mention the strict blockade imposed by the West on membrane separation technology; you can't even get a single piece of information.

"The industrial base is still too weak."

Zhou Weiguo threw down his pencil, feeling both anxious and helpless.

Although the technical data on the Dongfeng-5 provided by the system was detailed, such a massive project could not be completed without national support; however, if the technology were handed over, the secrets of the "system" would remain unexplained.

"Alright, let's start with the materials."

He suppressed his distracting thoughts, picked up his pen again, and listed a series of materials to be used in the Dongfeng-5 and Hongqi-2B missiles: high-temperature alloy steel for the combustion chamber, tungsten-copper composite material for the nozzle throat, high-strength aluminum alloy for the main structure of the missile body, reinforced concrete and steel plate composite structure for the missile silo reinforcement, as well as phenolic resin-based ablation materials, carbon-carbon composite materials... After writing a whole page, he was stumped. He still had to look up the data in his spatial storage for the specific parameters and processing technology. Just thinking about the mountain of drawings gave him a headache.

Just then, a soft voice suddenly rang in my mind: "Brother, I've seen these names you wrote in my spatial dimension before!"

Zhou Weiguo jumped in fright, dropping his pencil. He quickly calmed himself and entered his spatial perspective, where he saw Nannan looking at him with her little finger in her mouth.

"Nannan, can you please stop making sudden noises? You can scare people to death!" He patted his chest, then asked doubtfully, "You can still see what's happening outside?"

Nannan said matter-of-factly, "Of course! As long as you don't make me turn off the external detector, I can see everything around you. If you turn it off, we can only talk when you come in."

Zhou Weiguo waved his hand helplessly: "Alright, let's not talk about this anymore. Where have you seen these material names before?"

"It's in that pile of Dongfeng-5 technical data!" Nannan pointed into the distance.

Zhou Weiguo's eyes lit up: "Then can you help me find the information for these materials?"

"Of course! Brother, wait for me~" With a wave of her little hand, a stack of papers flew out from the pile of documents in the distance and floated to his front with a "whoosh".

Zhou Weiguo flipped through the document and found it contained all the necessary material parameters and process reports. He was overjoyed and patted Nannan's head, saying, "Nannan, you're amazing! You've helped me a lot!"

Nannan proudly tilted her head back: "That's nothing! I can control everything in this space~ System Brother says it's called 'God Mode'!"

"God mode?" A sudden thought flashed through Zhou Weiguo's mind, and he asked eagerly, "Nannan, can you do more complex things? Like understanding the principles behind these technologies, or helping to manufacture precision equipment?"

Nannan frowned and thought for a moment, "It seems like it's possible... but scanning data is such a hassle." Suddenly, her eyes lit up, "That's it! Brother already knows all the information in his head, he can just share it with me!"

"You can share this thing?" Zhou Weiguo's eyes widened, his face full of disbelief.

The little girl nodded vigorously, looking completely matter-of-fact: "Of course! As long as my brother gives me permission, it's fine!"

"Then hurry up! I'll share all my technical data with you!" Zhou Weiguo rubbed his hands together anxiously, his eyes full of anticipation.

The little girl obediently hummed in agreement, then stared at him with her big, round eyes, remaining motionless for a long time.

"Why don't you do it already? Didn't you say it could be shared?" Zhou Weiguo couldn't help but urge.

The little girl tilted her head, looking aggrieved, and said, "But brother, I've already shared it!"