"But nothing was found", Mu Tingfeng, who was standing on the side, said, "We carefully inspected the entire building, and for nearly a year, we didn't find anything."

“......”

The silence of the crowd is indeed a very confusing problem.

"Keys!"

"Keys!"

Almost at the same time, Gu Shiyi and Xie Shen looked at each other, and the deep meaning in their eyes became more and more consistent, until a consensus was reached.

"Heh, it seems that we thought of being together again" Xie Shen smiled lightly.

Gu Shiyi had nothing to say, pinched his eyebrows, and fell into a circle of mystery again.

"If the fourth door is related to the key, it will be even more tricky", Mu Tingfeng also sighed, "Boss, why don't we send someone to check it again to see if there is anything missing"

"No", Gu Shiyi waved his hand, "Since it is related to the key, it is useless to check it again"

The voice was deep and hoarse, the result of several days of working day and night.

Xie Shen stood up straight, patted Gu Shiyi's shoulder in fear, "Go eat something first, and then talk about it when you come back."

"Yes, boss, you haven't rested well in the past few days, and if you don't eat well, your body can't stand it," Mu Tingfeng said.

Sighing, Gu Shiyi dragged his tired body out.

"Gu Shao, don't worry, take your time, we still have time", Xie Shen said, following Gu Shiyi and walking out.

"Teacher, can I call you sister?", a pair of black pupils looked at Cheng Su.

The finger pointing to the question paused, Cheng Su tilted his head, and looked at the little boy in front of him, only eleven or twelve years old, childish, still innocent.

“... May I...... Sister?"

The little boy continued to ask, looking cautious.

Cheng Su's eyes moved, "Yes"

"Hee-hee, my sister is so nice!", the little boy began to work on the question happily.

In her previous life, it wasn't that no one praised her for being good, but at this moment, such a sentence came out of the mouth of a stranger who had never been in contact with her, such a young child, Cheng Su's heart still softened and trembled slightly......

"Sister, how do you do this question?", the little boy asked, pointing to a soft and glutinous voice.

Cheng Su glanced at it and spoke: "From the known conditions, a table is 279 yuan more than a chair, which is exactly (10-1) times the price of a chair...... In this way, you can find out, understand?"

“...... Well, I understand! Sister, you're so amazing!", the little boy carefully followed Cheng Su's explanation, brushed it up by himself, nodded very seriously, and had a bright smile on his face.

This is the second time that I have been praised like this, and I am inexplicably happy.

"Yes, I also think my sister is so powerful!", Zhao Xue took an English book, spread it on the table, leaned on it, and handed Cheng Su a bottle of water, "Do you want to drink water?"

Cheng Su took it, unscrewed the cap of the bottle, and handed it to the little boy who was writing the practice questions, "Drink some water, it's been morning"

"Sister, I'm not thirsty, you drink"

"Oh, what are you doing? I still have this! Look at you, life and death?", Zhao Xue smiled softly, frowned and shook her head helplessly, took out another bottle from her bag, and handed it to Cheng Su.

Cheng Su's mouth moved, "Thank you."

"Three words!", Zhao Xue said.

Cheng Su: "......"

"Hey, if you're like this, you don't have a boyfriend, right?", Zhao Xue looked at Cheng Su with a thief's look, and she couldn't be more sure if she saw through it.

Cheng Su: "......"

Zhao Xue pondered, "If you don't speak, that's acquiescence?"

Cheng Su: "......"

"But I really think that you are so good-looking, so beautiful, there is no need to make yourself look like a kaolin flower, right?"

"You're sure no boy dares to approach you, so how can you marry yourself?"

Zhao Xue analyzed Cheng Su, and said to herself, immersed in her own small world and unable to extricate herself, "My goal is to graduate from college as soon as possible, get married after graduation, marriage certificate in my left hand, graduation certificate in my right hand, oops, it's a super super happy thing to think about!"

"I'll go back first", Cheng Su said, put the bottle of water on the table just now, and turned to leave.

Zhao Xue stood up straight when she stood behind, and she didn't know if she was wrong in what she said, Cheng Su's face was very heavy, and she didn't seem to be very happy.

For several days, Cheng Su didn't talk to Zhao Xue again, more often he was alone, quietly, either in class, or standing in front of the windowsill, looking at a certain place, looking out of his mind.

————————————————————————

The summer vacation was soon coming to an end, and Cheng Su also returned to school early.

Gu Shiyi still didn't come back, and after a semester, Cheng Su returned to the original single table, but this time, she changed it herself.

On the eve of the college entrance examination, the school organized a large-scale mobilization campaign for parents and children.

Faced with the face of Lu Hanmin, Cheng Su couldn't say how he felt, and finally chose to be speechless.

The exchange of letters was still the same as the previous coming-of-age ceremony, but Lu Hanmin wrote one to Cheng Su, "Susu, this letter was written by me, your mother and she don't know yet."

“......”

"I want to say that your mother also has her last resort, and she does this in the hope that you can be better."

"Susu, there is no parent who doesn't want their children to be good, and your mother just wants you to be ......"

"Dad", Cheng Su opened his mouth to stop Lu Hanmin's words, "I'm going to take the college entrance examination"

Lu Hanmin's mouth was open for two or three seconds, and then he changed his mouth, and his expression shook slightly, "Ah, yes, college entrance examination...... Then Susu, Dad will wish you a good result in advance, Dad believes in you"

“......”

"You can take this letter first", Lu Hanmin still handed the letter in his hand to Cheng Su, "When you have time, it's not too late to read it"

Cheng Su looked down at the white envelope in his hand, his eyelashes moved, his fingers clenched, he took it, did not speak, and acquiesced.

Lu Hanmin watched Cheng Su take the envelope, and a smile appeared on his face inadvertently.

The event ended, followed by intense preparation for the exam......

Cheng Su sat on the desk, supporting his chin with one hand, his eyelids drooping slightly, and the light gray under his eyelids, one hand casually resting on the table, turning the pen.

The seat next to it was pulled open, and the familiar sounds and movements were familiar.

The space was limited, Gu Shiyi's legs were still very difficult to put away, sat next to Cheng Su, and said in waves: "What, miss me?"

The movement of turning the pen stopped, and Cheng Su's gaze was pulled back, his head turned sideways, and his eyes narrowed.

"How did you do it, every time it was so unified?", Cheng Su looked at him, as if he was smiling, his eyes were cold, and no one seemed to be able to enter her eyes.

"What do you mean?", Gu Shiyi didn't understand.