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

Zhou Weiguo breathed a sigh of relief upon hearing this, forcing a fawning smile: "Yes, yes, yes! These are just some sudden whims or random ideas that pop into my head sometimes. I can't even explain why, and I'm not even sure if these ideas are feasible or not."

Old Qin raised an eyebrow, his eyes full of disbelief, and stared at him, asking, "Don't tell me that all those guns and cannons we made before just 'emerged' like this?"

Zhou Weiguo's heart skipped a beat, and he could only nod reluctantly, his ears burning.

Mr. Lin, standing nearby, slapped his thigh and laughed heartily, his eyes glued to Zhou Weiguo as if he were a rare treasure: "This proves that you, Weiguo, are a natural-born scientific genius! Let's put aside other alloy materials for now, you must have mastered the refining methods for dinitrogen tetroxide and unsymmetrical dimethylhydrazine, right? You can explain it in such detail, you've probably tried refining them yourself. Tell me roughly how it's done!"

Zhou Weiguo tapped his fingers on the table, feigning contemplation, his mind racing through the basic refining processes of the two chemicals. He determined that the initial steps weren't too complicated, just that the protective requirements were high. He looked up and said, "Uncle Lin, the refining steps are a bit convoluted. Could you give me a few days? I'll write down the detailed process, and you can study it at your leisure."

Mr. Lin smiled so broadly his eyes narrowed into slits: "Okay! No problem!"

He hesitated for a moment before adding, "For the country, how about we consider joining the Fifth Academy? We're currently conducting theoretical research on ballistic missiles."

Zhou Weiguo quickly shook his head: "Uncle Lin, I'm not going to the Northwest! I'm fine staying in Beijing. If you need anything, just call me anytime, and I'll do my best."

Mr. Lin looked surprised: "Who said we were going to the Northwest? Theoretical research is all done in Beijing; we only go there for the trial production and testing phases."

Zhou Weiguo thought to himself that the steel rolling mill was closer to the courtyard house, and there would be more space and Nannan to help, so it would be more convenient. But he still shook his head: "Uncle Lin, I remember what you're doing there, but there's still a lot of work to be done at the steel rolling mill, and I really can't spare the time."

Old Qin then interjected, like a spoiled old child: "Oh dear, are you stupid? We can build guns and motorcycles anytime, right? The giant mushroom is a national treasure, how can you compare them?"

Zhou Weiguo's eyes darted around, and he came up with a lame excuse: "Old Qin, it's not that I don't want to go, it's just that I only feel inspired when I'm at the steel rolling mill. Maybe this place is just a good match for me!"

Old Qin rolled his eyes, puffed out his cheeks, and pouted like a wronged old child: "Fine, fine, do whatever you want! Remember, if you have any new ideas in the future, don't keep them to yourself, or I won't let you off the hook!"

"Don't worry! I definitely won't hide it!" Zhou Weiguo quickly nodded in agreement.

Old Qin suddenly remembered the important matter, and his tone became serious: "By the way, don't make a fuss about the enemy agents. Pretend you know nothing for now. Xiao Zhang has already extracted a lot of information from those people and is preparing to cast a wide net. You need to thoroughly investigate Jia Dongxu from your institute and Wu Yuejin, whom you asked about. Don't reveal anything for now. We need to find out how deeply they are involved. But don't worry, we've already arranged for people to keep an eye on them. They won't escape."

Zhou Weiguo quickly nodded and wrote it down. The three of them then discussed some details of materials research and development before Mr. Qin and Mr. Lin got into their car and left.

Watching the car drive away, Zhou Weiguo breathed a sigh of relief. Just as he turned around, he bumped into a warm figure. Natasha was standing behind him, her eyes gleaming with mischief.

She leaned close to his ear, her warm breath brushing against his earlobe: "Little master, what good thing happened this time? You're smiling like you've stolen honey."

Zhou Weiguo rolled his eyes at her: "Alright, come in and talk."

The two entered the office, and Natasha extended her slender index finger, gently lifting his chin, her tone teasing: "Little master, did I do a good job as his wingman yesterday?"

Zhou Weiguo pulled her into his arms, pinched her cheek, and teased, "Hmm, you did pretty well. Be more proactive next time. By the way, I have a question for you: do you want to marry your little master?"

"Marriage?" Natasha's eyes lit up, but the light vanished in an instant, and she quickly smiled again. "Forget it, young master. My current identity is fine in Xia Kingdom, but in a few years, if a major storm comes, my foreign citizenship might be a burden to you. If you really want to get married, you should marry Sister Tianzao or Sister Xiao'e first."

Seeing the undisguised disappointment in her eyes, Zhou Weiguo reached out and stroked her cheek, then smiled and picked up the military marriage registration certificate on the table: "Old Qin got all this done for me today. If you want to marry me, that's fine, but you have to change your citizenship to Xia Guo first. And judging from Old Qin's words, it seems like he doesn't restrict me from getting married or divorced."

Natasha shook her head again, her tone teasing: "That won't do. If I marry you, who will be my little master? Little master, the most important thing now is to marry Tianzao. Her situation is special, and it's inconvenient for her to live in the courtyard without a proper status. Take advantage of your close relationship and get it done quickly."

"Aren't you jealous?" Zhou Weiguo was taken aback.

Why are you jealous?

Natasha countered with a look of unwavering composure, "Being with you is enough. Titles and status mean nothing to someone like me."

These words left Zhou Weiguo speechless. Before he could react, Natasha laughed and gave him a forceful shove, shoving him out of the office with the stack of registration certificates in her hand: "Go! Propose properly and bring Tian Zao back today!"

Zhou Weiguo stood at the door, not knowing whether to laugh or cry. He could only turn around and go back into the house. He took out the prepared technical documents from his spatial storage and placed them on the table: "There's a batch of new materials. Can you help me study them? Also, if Mr. Lin wants the fuel formula, you can give him the fuel formula inside."

Natasha whispered in Zhou Weiguo's ear, "Okay! You go ahead, don't worry about me tonight, I'll wander back by myself. If you don't pick up Tianzao tonight, don't even think about sleeping in my bed!"

Zhou Weiguo was in a daze when Natasha dragged and pushed him into the car.

He wanted to say something more, but Natasha's cheeks were already puffed out like little buns. She pouted and waved her little fist in front of him, her eyes full of a warning that said, "Try dawdling again."

Zhou Weiguo shrugged helplessly, started the car, and drove away.

Twenty minutes later, the car came to a smooth stop in front of the street office where Tian Zao works.

Zhou Weiguo's fingers tapped unconsciously on the steering wheel as he drove, his heart pounding with anxiety. He hadn't expected that something as simple as getting a marriage certificate would cause him such inexplicable unease. Was it because he had never experienced anything like this in his past life, making him flustered?

But then he thought, Tian Zao is from the same world as him, so getting a marriage certificate would be a way to give her a sense of security.