Ling Yun scratched his head and thought for a long time in his office, but he couldn’t think of an answer.

He had gone completely berserk.

He thought about it for a long time. He thought about it day and night. He didn’t eat or sleep. He completely forgot about food and sleep. When the cleaner came in the morning, she was completely terrified to see him. Her hair was even more disheveled. He had his signature panda eyes, and his face was haggard like a dried corpse. The cleaner almost screamed when she saw him. He waved his hand, and the cleaner realized that he was alive.

In the blink of an eye, it was already the third day. He didn’t have any classes, but he still rushed to Sheng Yang’s class. He slapped the table, scaring Luo Mengmeng. When she saw his face, her face turned pale. She wished she could ask, “Teacher Ling, how many days have you been up?” On the other hand, Sheng Yang still looked up calmly as if she had expected him to come to her in such a situation. She asked, “What’s the matter?”

Her question made Ling Yun even sadder. He sat down on the other side of Sheng Yang and pointed at the paper in his hand angrily. “There’s definitely something wrong with this question! There’s definitely something wrong! Otherwise, it’s impossible for me not to be able to solve it!”

He had absolute confidence in himself.

Sheng Yang smiled wickedly. “What if I can get the answer?”

Ling Yun was instantly stumped. He scratched his head for a moment, then regained his confidence. “No… that’s impossible.”

Sheng Yang took the paper from him and wrote without pause.

Although Luo Mengmeng did not understand, she still stayed at the side to watch the commotion. This was a showdown between a student and a teacher.

This time, Sheng Yang took some time to finish writing. After handing it to Ling Yun calmly, she continued to tend to her own matters as if she was confident that she must be right.

Ling Yun went from having no doubts about himself to being skeptical now. He took the paper. Following that, the expression on his face changed visibly and quickly.

Reading was naturally much faster than writing, so he finished reading it all in about five minutes. His thoughts were organized and clear, but his jaw felt as if it had been dislodged. His mouth hung open, unable to close.

Luo Mengmeng looked at Yangyang, who was still reading calmly, then at Teacher Ling, who was gradually losing his composure. What was the meaning of this?

“Ouch!” A sorrowful cry pierced through the air, shattering Luo Mengmeng’s many guesses. Ling Yun actually couldn’t take the blow and cried out sadly. As a teacher, he was actually crying so miserably at this moment. What kind of man cried so easily? But he didn’t care at all. Tears flowed down his face…

“Oh my God, Teacher Ling is actually crying! Am I seeing things?”

“Why is Teacher Ling crying?”

“Who knows? It doesn’t matter! The important thing is to get our phones. Quick, get your phones. I must take a photo and record this moment!”

The other students could not sit still anymore. They all took out their phones and took photos of this terrifying scene.

As for the others in Innovation Group A, Li Ze, Li Rui, Shi Mo, and Yuan Xinran, they looked like they were used to it. What Teacher Ling was experiencing today, they had already gone through it in the past. They had also walked through such days step by step. Those memories that were buried in the dark abyss were really unbearable to recall.