In the store, Meng Dong was sitting on a bench, burying his head to draw the drawings. When he looked up, he just met Kaiyang's eyes.

"Are you here?" Meng Dong smiled gently.

"Yeah." Kaiyang responded softly, looking at Meng Dong, with a warm smile in his eyes.

"Sit." Meng Dong moved to the side, lowered his head and continued to slow down his image: "I have made some improvements to the fireworks you mentioned. Come and see if this is OK."

Kaiyang walked over, bent down next to him and looked at the drawings carefully, and nodded slightly after looking at it for a while: "Well! Not bad, this way, the fireworks will be more gorgeous, and the burning pattern will be more meaningful. You can finish painting first, and I will think about it later."

Meng Dong focused on drawing and nodded without raising her head.

Kaiyang sat down on the side, poured himself a glass of water, held it in his hand, looked at Meng Dong, who was focused on his work, pondered for a while, and then said, "I told Senior Tomyoji about your situation and recommended you to him. Senior Tomyoji said that he would consider asking you to join the Beidouji."

Meng Dong paused the pen in his hand, turned his head to look at Kaiyang and smiled, "My craftsmanship, in the eyes of the scholars and officials, is nothing more than a skill. I didn't expect that it would actually make Beidou Shi value it so much, which is really flattering."

Kaiyang held the teacup, tilted his head slightly and thought for a while, with a warm look on his face: "Brother Meng."

"Hmm?" Meng Dong was still focused on slowing down the map, but just said "Hmm".

"When you join the Beidou Division, you should be like me, mainly responsible for making some things in the Beidou Division. At that time, you and I will be able to spend time together day and night, and I can also ask you for a lot of skills." Kaiyang's voice was faint joy.

Meng Dong painted a picture, with a focused and handsome face on his side. After listening to Kaiyang's words, he smiled slightly: "You are always so humble. In fact, your attainments in mechanisms are much better than mine in some aspects, and I am about to ask you for advice."

Speaking of this, his pen suddenly stopped, looked at the drawings and frowned slightly.

"What's wrong?" Kaiyang was puzzled and came over to look at the drawings.

"Well... something is wrong here..." Meng Dong pondered for a moment, tapped the drawings with a pen, thinking about the improvement plan.

Kaiyang put down the water cup, checked carefully, and frowned.

The two discovered a small problem. The fireworks would burn violently after they were lit. If you want to form patterns in the sky, you must divide them into layers and set them off separately to form a three-dimensional sense.

But if it is fired at the same time, the tobacco and medicine will burn at the same time regardless of front and back, which will be messy. Even if it is formed, it will not look like it was originally designed.

The problem now is that it can not only burn tobacco medicine at the same time, but it does not interfere with each other, so here comes how to isolate tobacco medicine.

In this way, a simple plane mechanism is not enough and requires three-dimensional division.

"That's it..." Kaiyang looked for a while and said with an idea: "Where to change the box to a cylindrical shape? Fill each layer of tobacco and medicine separately, then pull out the leads, and finally stick them together..."

"Um..." Meng Dong nodded while listening and suddenly had inspiration: "As you said, we can actually separate all the fireworks, ignite one batch first, and then ignite the second batch after they are launched. This way, it should be fine to combine them into patterns or text. As long as the amount of cigarette medicine is the same, the time when the fireworks stagnate after they are launched should not be much different. When the second batch of fireworks is about to go out, ignite the third batch... and so on, the fireworks pattern can be fixed for a long time!"

Kaiyang's eyes lit up when he heard it, imagining that kind of scene, the beauty of fireworks hanging in the night sky for a long time, was also full of inspiration, and ideas popped out of her mind, making her very excited

In this way, the two of them whispered and discussed, sometimes changing hands and changing drawings, and they were all very dedicated.

...

Yaoguang and Taisui had returned to Beidousi on the other side. They sat in the garden. Taisui's injuries had healed. After moving for a while, he punched a set of punches. Then he turned his head and looked at Yaoguang with a proud look on his face.

"Look, I said I don't need to find Senior Dongmei. It's only a little longer, and it's completely fine!"

Yaoguang looked surprised: "You are such a freak, you are such a serious injury, you actually...ah!"

"Why are you sighing? It seems that I am cured quickly, and you are still unhappy." Tai Sui was a little depressed.

Yaoguang nodded with a look of disappointment: "Yes, I want to be moved for a while, but look at your appearance...ah."

Tai Sui shook his head helplessly and said, "Hey, woman, this is really hard to guess."

After saying that, he bent down and grabbed a handful of weeds from the grass, returned to the stone table with great enthusiasm, sat down, picked out a piece of grass, and flexibly weaved it.

Yaoguang straightened his waist and looked at him seriously: "What are you doing?"

The grass stems were quickly woven into a lifelike grasshopper in Tai Sui's hands.

Tai Sui handed the grasshopper to Yaoguang: "Here, I'll give it to you."

Yaoguang reached out to take it, but suddenly thought of something, then withdrew his hand, pouted and turned to the side: "I don't want it!"

"Hey, don't you like this thing very much, why don't you?" Tai Sui said in surprise.

"You gave this thing to Sister Kaiyang, but I don't want it." Yaoguang said jealously.

Tai Sui scratched her head, feeling a little embarrassed.

Yaoguang quietly glanced at him and curled his lips: "If you don't have sincerity, you have to give gifts to others, but you have to give them to someone else."

Tai Sui looked embarrassed: "Hey! But I know how to make up things. I made up all the things I gave to Sister Kaiyang last time."

Yaoguang glared at him angrily: "Ha! You are really unreserved, then I don't want it anymore!"

Tai Sui thought about it, her eyes turned, she smiled mysteriously at Yaoguang, picked up another grass stem, and weaved it.

Yaoguang glanced at him secretly, a little curious and expectant.

After a while, Tai Sui finally made up another thing, put it gently on the table, and looked at Yaoguang with a smile.

Yaoguang turned around and sat upright, looking at the things on the stone table. They were two grasshoppers, but the two grasshoppers were connected, and they only stretched out a green wing on one side of their own.

"What is this?" she asked with wide eyes and stretched out her fingers with curiosity.

"I created my own, flying grasshopper." Tai Sui was proud.

Yaoguang was both angry and funny: "The grasshopper flying with wings? Mandarin ducks and butterflies, it would be fine if you say it flying with wings, but you..."

Tai Sui shook her head disdainfully: "How can butterflies and mandarin ducks be considered flying together? "The Classic of Mountains and Seas" says that both male and female birds have only one eye and one wing. They must have the same wings as male and female to fly together, so I am the real flying together."

Yaoguang looked dissatisfied: "Ha! You tell me the "Shan Hai Jing"? The "Shan Hai Jing" also said that the winged bird looks like a wild duck, so you can make two wild ducks out."

Tai Sui was stunned: "This..."

"Hmph! No way?" Yaoguang raised his chin proudly.

Tai Sui's eyes rolled, and she smiled at her with saliva: "Hey! Look at us, we are handsome and handsome, how could we be like a wild duck?"

Yaoguang was both angry and funny, pointing at the Beewelves: "Then we are like a pair of Beewelves?"

Tai Sui was dejected and reached for the winged grasshopper: "Oh, then I'll lose it."

As he said that, he raised his hand and made a gesture to throw it away. At this time, Yaoguang suddenly reached out quickly, snatched the grasshopper and gave him a look: "Do you still want to take back what you gave me?"

Tai Sui smiled and looked at Yaoguang's pretty little face and rosy lips. Suddenly, she thought of what happened in the warehouse that day. Her face turned hot and she didn't dare to look at it.
Chapter completed!