"How long do you have to do now!" Lei Di asked with a smile.

"If you want to complete the task, it will take thirteen years, and it will take a long time!" Yang Yu said helplessly.

"According to the strength of the subsystem, the system host at that time should have reached the level of Doudi, so the level you can achieve depends on what kind of cultivation you can have during this time. If you can become Doudi and make progress, maybe you can deal with the subsystem!" Lei Emperor said with a smile.

"It's not that easy to become a Doudi. My current cultivation level is not enough, and if I want to complete the task, I will definitely be blocked by that guy in the system." Yang Yu shook his head and said.

"Do you have no partners? If you enter this time and space, the protagonist of this time and space should have a good relationship with you!" Lei Emperor said in confusion.

"It's okay. Now the people who can become Doudi have roughly known. There should be five people here who become Doudi. The protagonist and I have the possibility of winning a freak!" Yang Yu nodded and said.

"That's fine. At that time, let the protagonist of this time and space deal with the original opponent. No matter how powerful the opponent is, the protagonist will definitely win in the end. You just need to deal with the system with other people!" Lei Di nodded and said.

"By the way, Yan Ruyu is really your and your mother's friend?" Yang Yu asked in confusion.

"Well, Ruyu is your mother's fucking sister, what's wrong?" Lei Di said with a smile.

"That's right for me and her!" Yang Yu said awkwardly.

"Puff!" The tea that Lei Emperor had just drunk was sprayed out, looking at his son in front of him with a strange look on his face.

"What's going on?" Lei Emperor asked speechlessly.

"That's it..." Yang Yu said everything to the Lei Emperor, and finally he could only spread his hands helplessly.

"So, you kid, but you have a good reputation as a woman. Ruyu was the number one beauty in the mainland at that time!" Lei Emperor said helplessly.

"Haha..." Yang Yu smiled awkwardly.

"Since your affairs have been basically resolved now, I'll talk to you, a way to allow you to break through to the Doudi in a short time!" The Lei Emperor waved his hand and said helplessly.

"Is there such a place in the Douqi Continent to break through to the Doudi?" Yang Yu asked with a frown, searching for a side in his mind, but there was no trace of information.

"There is such a place in the Black Horn Domain that I accidentally discovered after becoming the Dou Sheng. It was a very terrifying place. Your mother and I called that place the Tomb of the Gods. If you can come out of it, you will definitely become the Dou Emperor!" Lei Emperor said with a smile.

"There is such a place in the Great Plain of the Black Horn Domain?" Yang Yu frowned.

"Don't believe it. The Thunder Emperor Tower must be what I brought out from there. The opportunities and horror inside are incredible. Even after experiencing many worlds, I thought that authenticity was very strange!" The Thunder Emperor said with a smile.

"I understand, give me a way to get in. After I become the Dou Sheng, go there!" Yang Yu nodded and said that what he needs most now is to break through to the Dou Emperor!

"Don't worry, I will give you a way to enter later. After you become a Dou Sheng, go and try it in!" Lei Di said with a smile.

"Wait? Is there anything else?" Yang Yu asked in confusion.

"Since you have passed the nine-generation cycle of reincarnation, I will give you an opportunity to help you break through the nine-turn. After you are in seclusion, it will only take a few years to break through the Fighting Saint!" Lei Emperor said with a smile.

"What opportunity?" Yang Yu asked in confusion.

"My spiritual consciousness retains the control method of the Thunder Emperor Tower and the part of the power I left behind, which is enough for you to break through the nine turns!" Thunder Emperor said with a smile.

"Are you going to disappear?" Yang Yu frowned.

"I have been here for more than three thousand years. It's only a matter of time before I leave." Lei Di smiled.

"Okay, I accept it. I will see you after I become a god!" Yang Yu said with a smile.

"Where should I wait for you!" The Thunder Emperor said with a smile, and in an instant, a ray of lightning turned into lightning and penetrated into Yang Yu's eyebrows.

Yang Yu also sat cross-legged and entered a state of cultivation.

When Yang Yu was practicing, the passage of time outside was completely different from that of the Thunder Emperor Tower. It was like there was a specific rule power. No matter how long Yang Yu spent, Yang Yu only used it for an hour!

In the Thunder Emperor Tower, Yang Yu's cultivation level was really soaring rapidly, starting from the Five Star Dou Zun, and hitting a deeper realm in a soaring state. The spiritual liquid in the purple gold gourd in Yang Yu's hand was also swallowing the silk thread, and all turned into pure energy and sank into Yang Yu's body.

Time passes, and practice soars:

Six-star Dou Zun... Seven-star Dou Zun... Eight-star Dou Zun... Nine-star Dou Zun... One turn, Two turns... Seven turns...! Nine turns!

Nine-turn Dou Zun, Yang Yu's cultivation level crossed more than a dozen realms from the realm of the Five-star Dou Zun within one hour and entered the Nine-turn Dou Zun. It can be seen how rich Yang Yu's gains this time in the Thunder Emperor Tower.

The power left by the Thunder Emperor has been able to make Yang Yu’s cultivation break through so much in more than three thousand years. It can also be seen how terrifying the Thunder Emperor’s cultivation and strength are!

After breaking through the Nine Turns Dou Zun, Yang Yu also opened his eyes and looked at the ninth floor of the Thunder Emperor Tower that had been silent all around him, with a helpless look in his eyes.

However, after feeling the strength of the Thunder Emperor breaking through to the Dou Emperor, Yang Yu also had some confidence in the subsequent crisis.

"The peak realm of Nine Turns, you should go into seclusion after you go out. When you break through to the Dou Sheng realm, you go to the ancient clan to explore the strange place of the Heavenly Tomb, and then you should start to break through the Dou Emperor!" Yang Yu clapped his hands, stood up on the Congpu, and disappeared into the Thunder Emperor Tower in the next second, appearing in the space outside the Thunder Emperor Tower.

"Yang Yu, come out!" Everyone was amazed as they watched Yang Yu appear suddenly.

"Brother Yang Yu, have you gained a lot?" Xun'er trotted to Yang Yu and asked with a smile.

"I understand a lot, understand a lot of things, and my cultivation has also improved a lot. Overall, it's very good!" Yang Yu said with a smile.

"That's good!" Xun'er said with a smile.

Yang Yu nodded, looked at Lei Ding, and said with a smile, "Class leader, you take them away first. I have something to do here. When the tomb of Heaven is opened in three years, you can come here and call me out!" Yang Yu said with a smile.

"Yes, I'll come here in person then!" Lei Ding said with a smile.
Chapter completed!