Autumn in Beijing is as hot as ever, and perhaps autumn and summer are one in one place.

Although there are only 1,000 single rooms, Chu Yuxuan prepaid the dormitory fee for four years in advance in his freshman year and lived in a single room on the third floor of Area A of the dormitory building.

In the evening, eight o'clock. Chu Yuxuan was lying on the bed, holding a book of Sudoku elementary texts with slightly wrinkled corners in his hand, and his right hand kept sketching on it with a 2B pencil, quickly calculating the possibility of each step in his mind. After a long time, Chu Yuxuan exhaled softly, closed the book and stretched, and casually threw the pencil and intact eraser aside.

Chu Yuxuan put on his shoes and walked to the closed partition window, opened the window, and a light breeze blew and took away the dense numbers that were still in Chu Yuxuan's mind.

Chu Yuxuan looked at the path outside the window, and a familiar figure appeared in front of him. He pondered for a moment, then walked to the door, pressed the handle, and opened it a small crack.

After a while, a gray figure flashed into the room and made a disgusting poss at Chu Yuxuan, and Chu Yuxuan lay down on the bed again without looking at it.

It was Chu Yuxuan's classmate Pan Shusen who came in, if there was anyone in Qingbei University who had the leisure to walk into this room, I am afraid that there would be no second person except him. Pan Shusen can be said to be one of the few friends of Chu Yuxuan in college, and he also lives in a single room, but it is on the 5th floor of Area C.

Pan Shusen is handsome, with a tall hooked nose and a well-defined face, attracting the attention of countless female classmates, but what is commensurate with this handsome appearance is a cynical mentality, of course, at least the usual state, whether he is really a cynical rich second-generation handsome guy, Yang Feng also does not know.

"What's the matter with coming so late?" Chu Yuxuan picked up the Sudoku Elementary Chapter again and looked at it casually, the 9*9 squares of 1~9 densely arranged on it, "By the way, next time you come and bring a Sudoku Advanced Chapter, I have already finished this primary chapter." ”

Pan Shusen just wanted to sit on the stool, but when he heard this, he stood up again, and shouted at Chu Yuxuan in surprise: "What? What the? You're done? I just gave it to you yesterday afternoon, and you did it so quickly? Do you know that you hurt my fragile little heart like this? Pan Shusen said exaggeratedly with his hands on his heart.

Chu Yuxuan glanced at Pan Shusen, shook his head and said, "I don't think that although this primary book is 9*9, there are too many hints given on it, so it is easy to deduce." ”

Pan Shusen looked at Chu Yuxuan incredulously, then sat on the stool and muttered in a low voice, "Do you know that I only made three ...... in a week?" Forget it, if it were you, it would indeed be possible to do it that fast. Pan Shusen looked at Chu Yuxuan with a wicked smile, thinking that next time he would bring him this master version, to see if he would do it so quickly!

"What are you muttering there, laughing so obscenely." Chu Yuxuan stared at Pan Shusen's face and asked, "Say, what's the matter with coming so late?" ”

Pan Shusen walked to the bed and said to Chu Yuxuan exaggeratedly: "Guess what happened in the school?" ”

Chu Yuxuan didn't even look at him and said directly: "I don't know." ”

I don't know that the concise three words made Pan Shusen's face black, and Pan Shusen said resentfully: "Can't you say a few more words!" Can't you just guess!"

"Not interested." Chu Yuxuan ignored it and continued.

Pan Shusen covered his forehead with his hand, and several green tendons on his forehead burst out, and it seemed that he was about to enter a violent state. Pan Shusen stared at Chu Yuxuan's face, and his calm appearance made him feel helpless.

Pan Shusen said helplessly: "I lost to you, did you find out?" Recently, a lot of police officers have come into our school, and now it can be lively, a while ago, reporters and police after a while, will the funeral team come to our school to join in the fun? ”

Chu Yuxuan got up and walked to the window, and said softly: "That's what the school should do, what does it have to do with me?" Chu Yuxuan looked at the sky outside the window and continued: "There are still no stars tonight. ”

Pan Shusen stepped forward and pulled Chu Yuxuan's arm back, but he couldn't hold it, and said with a sigh: "How can you see so many stars in the city now, hey, I guess if you react like this, can't you show a little excitement like everyone else?" Even if it's a good smile. Pan Shusen smiled bitterly and continued: "You are really like Origi Fengtaro who is better than less than one thing, and Origi Buntaro (1) who is better than not doing one thing less. ”

Chu Yuxuan looked back at Pan Shusen and said faintly, "So there are fewer people hanging out in the school tonight than usual?" Scared of being the next target? You see, even if twenty-six people died on campus, wouldn't those students be smiling happily? Holding an ice lemon in his hand while chatting with his girlfriend and playing with boys, why should we care so much? There are police and studies will take care of it. ”

Pan Shusen hurriedly smiled and said, "I know, so I want you to talk to your sister, hehe...... Tell me about your FBI cousin......"

"No way, you have to ask yourself." Chu Yuxuan said resolutely.

Pan Shusen replied flatteringly: "Hey, you are my brother, please!" Even if you don't ask, your iceberg-like sister will definitely come to the school to look for clues from you in order to solve the case, you can do it! Pan Shusen continued undiscouraged: "And I feel that you must personally come out of this case, you will ......."

Pan Shusen saw Chu Yuxuan glaring at him fiercely, the breath from those eyes made him feel a dangerous aura, Pan Shusen waved his hand and said: "Okay, I won't say it, since you don't want to, I'll leave first at this night, by the way, there is a teaser post for the murderer's next step in the school post bar, you can take a look, bye-bye." As soon as he finished speaking, Pan Shusen walked out of the door with a sigh of relief.

Chu Yuxuan turned around and looked at Pan Shusen's back downstairs, thinking in his heart.

In fact, he also has that feeling, this case may not be so simple, and ...... There was an intuition in the dark that told him that this case had a lot to do with him, which was the real reason why he didn't want to help Pan Shusen intervene, he didn't want to get involved in this case, and he didn't want his cousin to come to him.

Chu Yuxuan took out his mobile phone and opened the webpage to enter the school's post bar, the first post at the top was the teaser post, Chu Yuxuan clicked in and watched silently. Seeing that at the end, when he saw the target of the murderer's next attack, Chu Yuxuan's brows furrowed, and an ominous premonition came to his heart.

The annual rings of fate are turning all the time, and no one can predict what will happen in the future, Chu Yuxuan stood in front of the window and thought blankly.

Note: (1) is the name of the male protagonist of the Japanese anime "Ice Fruit".