I just returned to Konoha and found that all my clan members were gone.

"Don't look at me like that, okay?"

Ye Lan looked at Karin in front of him helplessly and said.

"So you were the one who asked me to come back?"

At this time, Karin became bolder and pointed at Ye Lan with a bad look on her face.

"You are right to understand it. I told the leader to tell you to come back."

In order to solve the problem of practicing immortal arts, Ye Lan came back to talk to Pain, and then notified them through the ninja cats to return to Yuyin.

"Where's Sasuke? Sasuke isn't back?"

Karin asked without giving up.

"He and Kisame should be recruiting people in the Land of Craftsmen now. Our factory has expanded a bit after cooperating with Konoha. The population of Amegakure alone can no longer meet the needs."

"Oh my god, I worked so hard to come back just to see you..."

"Hmm?" Ye Lan narrowed his eyes, and a trace of murderous aura flowed out of his body.

Karin, who had the mind of Kagura, clearly sensed the murderous intent of the other party, and spoke from the bottom of her heart for a moment.

"handsome guy."

"Haha, I feel embarrassed when you praise me like that."

The murderous aura on Ye Lan disappeared and a smile returned to his face.

Lai Yuyin was living too comfortably, and Karin didn't know her size for a moment, so she had to give her a beating.

Karin looked at Ye Lan as if her parents had died. Although Ye Lan was very handsome, he was not her type at all. Although Karin didn't know what her cousin Sasuke wanted to do, she really didn't want to deal with such an ambitious guy.

"How about studying in Konoha?"

After the greetings, it’s time to get down to business. Ye Lan didn’t come here to chat about family matters with Karin.

"For example, I have mastered the hemostasis technique that I originally knew, and I have also mastered the cell extraction technique and regeneration technique."

Karin answered honestly and Ye Lan nodded. Although they were all B-level or C-level medical ninjutsu, they were almost the same.

"Is it okay if I allow you to have an eye transplant?"

"That's easy. Even a guy like Tayuya can do it."

Karin said this confidently, and stepped on Tayuya by the way.

"Then do it for me, I need a new pair of eyes."

Ye Lan's eyes turned into red Sharingan, and he stared at Karin and said.

Karin was stunned. She didn't expect that she would be called back for such a thing. She was stunned and asked again.

"Isn't the Sharingan a secret technique of the Uchiha clan? Why do we need to change the eyes?"

"You don't need to ask me about this. I also replaced my Sharingan. I'm just giving you some experience. You may be useful to Sasuke when he replaces his eyes in the future."

In order to get Karin to work hard, Ye Lan had to mention Sasuke.

Karin didn't dare to think too much about it, as this might lead to the discovery of the Uchiha clan's biggest secret. Smartly, she stopped asking questions and just spoke.

"Give me a clean operating room with the latest medical equipment from Yuyin, and I want Tayuya to help me."

"Okay, but before that, you should take a rest. I'll come find you in two days."

Ye Lan left a few words, turned around and left. He still had a lot of things to do once he returned to Yuyin.

I quickly came to the R&D department and heard that Scorpion had come up with something new.

As soon as you enter the R&D department, you will find that the space here is obviously much larger than before, and there are more people working here. This is where the outstanding craftsmen recruited by Akatsuki from all over the ninja world gather.

Since other countries do not pay attention to this aspect and Yuyin is willing to spend money, most of these craftsmen come here.

Enter the largest room in the middle, and as soon as you enter, you will see Scorpion fiddling with something.

Scorpion ignored Ye Lan, or didn't care if someone came in. He was debugging a fully armored vehicle.

Ye Lan recognized at a glance that this thing was somewhat similar to the combat vehicle in his previous life. The reason why it was not called a tank was because the size and proportions were completely different.

"Did you really figure this thing out?"

Ye Lan walked up to the combat vehicle and touched it in disbelief. The cold touch told him that this was the truth.

"Huh, is this thing difficult? It's just a matter of attaching the chakra cannon."

Scorpion said without turning his head, Ye Lan’s arrival was not enough to distract him.

Ye Lan stroked the black gun barrel. This gun was much smaller than the chakra cannon he had seen on the test field. He then asked a series of key questions.

"So what's the range now? How long is the interval between each firing? And is this thing fast?"

"As soon as you came back you asked all sorts of questions. You wouldn't know nothing if you came a couple more times."

Scorpion looked at Ye Lan impatiently, stopped what he was doing and said.

"After being optimized by the old man named Zhuomo, the range can barely reach 200 meters, but don't even think about the accuracy after driving. You can only improve it if you aim without moving the car."

After I returned to the village, I joined the R&D department, probably to tinker with this thing.

"The interval between shots. If the operator is skilled, he can reload the ammunition and fire the next shell in fifteen seconds. However, the barrel cannot fire more than twenty rounds in a row, otherwise it will overheat and explode."

"In order to increase the speed, it uses eight tires instead of tracks. Some rough roads are not suitable for combat. But on the contrary, the speed of this car is definitely beyond the reach of Genin. Only some Chunin who focus on physical training can catch up."

Even though Scorpion pointed out many shortcomings, Ye Lan couldn't help but feel satisfied. The biggest function of this thing was guerrilla warfare or defense. If you were to actually charge into the battle, you wouldn't need it. It would just provide long-range fire support.

Otherwise, if the opponent uses several earth escape techniques to change the terrain in front of him, Ye Lan cannot expect this thing to break the earth flow wall, otherwise he will be heartbroken.

"One more thing, doesn't the chakra cannon need to be conducted with the ninja's chakra before it can be fired? How did you design this cannonball?"

Ye Lan then asked another question.

Scorpion glanced at Ye Lan and muttered.

"This involves my puppet aspect. I put this method of storing chakra together with gunpowder in the cannonball. The chakra will only burst out when it is fired, making the cannonball more powerful and faster."

"Old Scorpion didn't expect you to be so capable. The future of Yuyin depends on you!"

Ye Lan, in a good mood, made a joke and patted Xie on the shoulder.

"I don't care about this kind of thing. Just give me more materials for making puppets. I still have puppets to make."

Scorpion shook off Ye Lan's hand and said disdainfully.

"This thing is not enough for you to mess with. I can burn all your puppets with one fire escape. The puppet of the Sandaime Kazekage is a little tricky, but that's it."

Ye Lan didn't want Xie to waste his energy on this. In his opinion, there was no future in fiddling with puppets.

This time, Scorpion did not refute loudly, nor did he say that Ye Lan was trampling on art. Instead, he smiled mysteriously and said.

"Then I'll let you see my ultimate art. Don't be surprised."