Facing Bai Feng's gratitude, Liu Meng shook her head. "After all, this situation is partly my fault. I insisted on having you come here to help."

"Moreover..." She glanced at the somewhat evasive Su Lanqian, a smile brightening her face. "If you really want to express your gratitude, just thank Lanqian. I merely analyzed the situation; she was the one who insisted on waiting in the southeast of the city."

Su Lanqian's cheeks flushed slightly as she murmured, "But Master, by saying that, you really want me to wait in the southeast, right?"

"Alright, let's not dwell on that." Liu Meng waved her hand with a smile. "Let's go check on Lord Gu. They must be waiting impatiently by now."

---

**Chapter 129: This Time, Senior Sister Yuyao's Outburst Lasted Quite a While**

At the banquet celebrating the successful construction of the grand formation, Bai Feng was searching for food that suited his taste. Just as he reached for a fried glutinous rice ball, a small hand darted in and snatched it from the plate.

He instinctively turned to see Yuyao wearing a teasing smile, clearly both of them had their eyes on the same dish.

"Senior Sister, I need your help selling a few portable formation plates," Bai Feng said, taking advantage of Yuyao's retraction to grab two glutinous rice balls for himself. "And please, don’t eat with your hands."

"Sure, leave it to me! Just give me a bit more time this time so I can promote it properly," Yuyao said, stuffing a glutinous rice ball into her mouth before reaching for the plate again with her chopsticks. "And I’ve already washed my hands!"

"Besides that, I’ve made a small item that I need you to take a look at, to see if it can be sold." Seeing her reach for the rice balls again, Bai Feng extended his chopsticks toward the plate. "Senior Sister, maybe you should eat a little less. Be careful not to gain weight."

"I'll help you after I finish this plate of rice balls," Yuyao said, equally determined as she reached for the glutinous rice balls again. "And you don’t need to worry about me gaining weight; I’m maintaining my figure!"

Then, they exchanged glances, and in the next moment, they began to 'battle' with their chopsticks.

The scene was lively, filled with the clatter of chopsticks.

In the end, it was Bai Yumo who seized the last glutinous rice ball while the two were distracted, prompting them to stop and stare at the rice ball in her hand.

Under their watchful eyes, Bai Yumo placed the rice ball onto Bai Feng's plate and took the opportunity to ask, "Brother, what were you two just talking about?"

With a victorious smile, Bai Feng picked up the last rice ball, took a bite, and slowly explained, "I’ve created something similar to a recording stone and wanted to see if there are any improvements needed. If not, I’d like you to help sell it."

"Is it something like a portable formation plate?"

Bai Yumo asked curiously, ignoring Yuyao's grumbling about 'unfairness' from the side.

She remembered Bai Feng tinkering with all sorts of odd inventions, like a faucet that dispensed water with a twist and strange furniture that emitted cool air.

Bai Feng shook his head. "No, only I can make portable formation plates, and maybe Su Senior Sister can help too. But I have other things to do, so selling a few in emergencies is fine, but it won't provide a stable income."

'But isn’t that how everyone else does it?'

Bai Yumo felt a bit confused.

Bai Feng continued, "So, I plan to simplify the production process through methods like splitting the components, hiring lower-level formation masters to help with the assembly, and then I’ll just pay them for their labor."

"But that means others can learn and make it themselves, right?" Bai Yumo asked, puzzled.

"Exactly, which is why I plan to tackle it from two angles." Bai Feng nodded. "One is branding; we need to establish our own trademark, which is quite complex, so let’s set that aside for now. The second is to install a small device internally to prevent others from disassembling it. I’ll also have each formation master only responsible for one part, so it won’t be useful for someone to bribe just one or two people."

With his skills combined with 'Thousand Formations,' ordinary formation masters wouldn’t be able to crack it, and those who could wouldn’t be interested in such a small item.

This way, at least for the short term, he wouldn’t have to worry about being copied.

While Bai Yumo was still trying to grasp the business side of things, Yuyao’s eyes were already wide with excitement. She even dropped half of the glutinous rice ball she was holding onto her lap.

Ignoring the rice ball on her leg, she reached out to grab Bai Feng's shoulder. "Little Junior Brother, I know I’ve said this many times, but you’re truly a genius!"

"I’m so glad you weren’t born into another business; otherwise, I’d definitely go bankrupt because of you!" Yuyao leaned forward, gripping Bai Feng's clothes, her face almost touching his. "Little Junior Brother, let’s form a partnership! This time it’s for real. Our two families joining forces can definitely break through the Northern Region! Please seriously consider it!"

"Cough!!" Bai Yumo coughed loudly, placing a hand under Yuyao's arm to pull the reluctant Yuyao away from Bai Feng. "Senior Sister, don’t joke about things like this. At least be mindful of your reputation!"

"Ugh... but I really can’t bear to let go of such a business genius!" Yuyao said, her eyes glistening with tears.

"Cough, Yumo is right. Senior Sister, you should also be mindful of your reputation." Bai Feng had seen Yuyao's outbursts before, but this time it seemed more intense than usual. "And personally, I’m not interested in partnerships; I’d prefer a mutual relationship."

"Great minds think alike!" Suddenly, Yuyao grabbed Bai Feng's hand, her face beaming with a radiant smile. "Actually, I also hope for a mutual relationship!"

Bai Feng: "..."

This time, Senior Sister Yuyao's outburst lasted quite a while!

"Let’s talk about the product instead."

He pulled his hand away from Yuyao's grasp and took out the prototype he had been working on recently.

It was a square, semi-transparent jade stone, but it wasn’t a single piece; from the neatly cut seams, it appeared to be made of multiple pieces of jade spliced together.

"I’ve named it the Recording Device. Just insert a specially made recording stone, and it can capture images. The recording stone can be used multiple times, and after recording, you can choose which images to view and even drag the timeline, so you don’t have to watch from start to finish."

Due to time constraints and being the first generation of the device, Bai Feng hadn’t made it overly complex. Besides the previous features like video appreciation, switching, and timeline dragging, he had only added a photo function.

To increase storage capacity, he also implemented an external recording stone feature, essentially an external memory card, though it currently only stored photos and videos.

Later, he planned to experiment with integrating it with refining to see if he could create more complex functions.

"Well..." Yuyao paused her outburst upon seeing the Recording Device, her expression thoughtful. "It’s definitely more convenient than the recording stone; the sales shouldn’t be too bad, but I can’t guarantee anything."

"Let’s try selling it first. If it doesn’t sell, it’s fine; I have other methods."

Bai Feng shook his head. Although he had added a photo function, he primarily intended it as a peripheral for the Spring and Autumn period.

After all, it was his first attempt. If someone was willing to buy it, that would be great; if not, he could always improve it based on market feedback later.

---

**Chapter 130: Have You Heard of the Spring and Autumn Period?**

"By the way, I haven’t explained how to use it yet. Perfect timing for a demonstration." Bai Feng placed the Recording Device in front of him and glanced at Bai Yumo and Yuyao. "You two come over here, and it’s best if you lean in close to me."

Though puzzled, Bai Yumo and Yuyao moved closer, watching the Recording Device in Bai Feng's hands. Suddenly, their three figures appeared on the device.

With a click, a photo of the three of them leaning together materialized on the Recording Device.

"Wow!" Yuyao exclaimed, quickly leaning in to get a better look. "This feature is interesting! How does it work?"

"Just press here. You can take photos even without inputting spiritual energy, but it will need to be recharged with spirit stones after a while."

Under Bai Feng's guidance, Yuyao quickly mastered the photo-taking function.

She picked up the Recording Device and snapped a picture of the delicious food on the table.

Bai Feng: "..."

Why did this scene feel so familiar?

"What are you all talking about?"

Noticing their strange behavior, Gu Yueqing walked over, her curiosity piqued as she watched Yuyao snapping photos.

At that moment, Bai Feng suddenly turned to stare at her for several seconds, making her feel a bit shy before he finally spoke. "Gu Senior Sister, I’d like to ask you for a favor."