July 5, 2018, Ward 301, Tenth People's Hospital

Hurley opened his eyes and lay himself on the bed. Now Heli has lost another relative. His father and mother died when he was five years old, and now, even Hezhi has passed away.

Hurley looked at his two hands, and a score appeared on each of his left and right hands. He closed his hands and looked again, and it was the sum of the two fractions. He was on the bedside table again, saw a math book, opened the math book, and he knew everything about the test questions inside!

He got out of bed and looked out the window again, where it was still in ruins.

"Still haven't recovered!"

"Actually, we have been saved."

Yang Fan stood behind Heli, carrying a black bag in his hand.

"Heli, it's finally over. First of all, thank you to Hezhi who has sacrificed! She has already done so much for us!"

Hurley asked, "That... What do you think is going to do to end this disaster?"

"First of all, the hackers have been defeated by us; Secondly, I found the rational medicine in your bag, and the doctor turned it into a liquid and injected it with 60 percent. You can now directly use your rational numbers to restore the city!"

Hearing this, Heli thought, will it be difficult?

"It's not going to be hard!" Yang Fan said.

"Alright! Let me restore the city!"

After Heli finished speaking, he stretched out his hand, and a mathematical formula immediately appeared in his hand. It was originally an abandoned elevated highway in front of the hospital

It recovered, from black to purple, and back to the way it was. The road was also restored, as were the buildings on the opposite side. All around the hospital have been restored. After that, the abandoned Hongqiao Airport piled up, and the black turned purple and was restored to its original state. The runway was restored, and the planes supporting Spring Airlines were restored together, and the passengers on the plane opened their eyes, and Lin Meiyi and Xue Liyan also sat smoothly in their seats.

Then, other areas of Shanghai have gradually recovered, such as Jinjiang Park, Disneyland, Science and Technology Museum, Yu Garden, Shaojialou....

The Bund and Lujiazui areas are also gradually recovering. The Oriental Pearl and Jin Mao Tower, from black to purple, have been restored to their original state. The same is true for the Shanghai Tower and the financial center.

In the end, Shanghai was completely restored to its original state. On the top of the Oriental Pearl, a three-character medal with a root number appeared, which was carried to the hospital by the breeze and caught by Heli, who attached this medal to his right chest, and the physical hospital gown gradually turned into a suit, a white shirt, and a purple tie.

He-Yi became a true math master.

Yang Fan said again: "Heli, this is for you."

The bag in Yang Fan's hand is black and has three characters. Heli pulled out the book in his bag, black with the words "Illustrated Math Contents" written on it.

"Heli, your sister Hezhi, has turned her body into a book to keep it safe. Remember! She will always be with you!"

A few days later, Tian Tian, who received information in other places, is now in Nanjing. "What? Shanghai is restored! Why didn't you tell me sooner?" Alas! Miss Tian Tian, don't be so excited! We just received the news that the restored Shanghai is not good all at once, it was very chaotic a few days ago!" The hotel butler said with a white cloth in his hand

"Okay, I'll book my train ticket now! By the way, butler, how to get to the train station?" Tian Tian asked again. The housekeeper replied, "Miss, take Line 1 to Nanjing Station."

Tian Tian prepared everything and got on the train.