Director Zhang sighed: "Some people have reported some issues regarding you, and we need to investigate them thoroughly. Until then, cooperation can only be suspended."

A sense of foreboding washed over Lin Wanqiu; she vaguely suspected that Zhao Jianjun might be behind it all. But she had no evidence and didn't know what to do.

"Director Zhang, I really haven't done anything to wrong the supply and marketing cooperative. I make all my tofu myself; you can investigate." Lin Wanqiu explained anxiously.

"We'll investigate. You should take the tofu back first. We'll contact you again when the investigation is complete," Director Zhang said helplessly.

Lin Wanqiu pushed her cart back dejectedly, her heart filled with grievance and resentment. She couldn't understand why her efforts were always sabotaged by others. She didn't know how to salvage the situation and keep her tofu business going.

After returning home, Lin Wanqiu told Shen Nian'an what had happened. Shen Nian'an was also very angry after hearing it.

"Mom, it must have been that scoundrel Zhao Jianjun who did it! He just can't stand to see us doing well," Shen Nian'an said angrily.

Lin Wanqiu nodded helplessly: "I guessed it was him too, but we have no evidence and can't refute him."

"Mother, what should we do? Are we just going to give up like this?" Shen Nian'an asked anxiously.

Lin Wanqiu gritted her teeth: "No, I won't give up. I must find evidence to prove my innocence and get the supply and marketing cooperative to cooperate with us again."

In the days that followed, Lin Wanqiu inquired everywhere, trying to find evidence that Zhao Jianjun was spreading rumors. She visited everyone in the village, hoping to find someone willing to testify for her. However, everyone was afraid of Zhao Jianjun's power and dared not speak up easily.

"Is there really no way out for me?" Lin Wanqiu sat in the courtyard, looking at the tofu piled up all over the yard, her heart filled with despair.

Just when Lin Wanqiu was feeling desperate, Aunt Wang found her.

“Wanqiu, I’ve heard about what happened to you. Don’t worry, I believe in you. Although I can’t testify for you directly, I know someone who might be able to help you,” Aunt Wang said mysteriously.

"Aunt Wang, who is it? Please tell me quickly," Lin Wanqiu asked anxiously.

"It's Uncle Li from the village. He helped out at Zhao Jianjun's house before, and I heard he knows some of Zhao Jianjun's dirty secrets. You can go ask him; maybe he can provide some useful clues," Aunt Wang said.

Upon hearing this, Lin Wanqiu felt a glimmer of hope: "Really? Aunt Wang, thank you so much! I'll go find Grandpa Li right now."

Lin Wanqiu went to Grandpa Li's house and explained her purpose. Grandpa Li hesitated for a moment, then said, "Young lady, I do know some things about Zhao Jianjun, but he's the village secretary's son, I'm afraid..."

Lin Wanqiu quickly said, "Uncle Li, I know what you're worried about. Don't worry, I won't make things difficult for you. As long as you can provide some clues, I'll handle the rest."

Looking at Lin Wanqiu's determined eyes, Grandpa Li's heart softened: "Alright, young lady, I'll tell you. When I was helping out at Zhao Jianjun's house before, I overheard him and his cronies talking about how they wanted to sabotage your business and even frame you for speculation. I didn't pay much attention at the time, but I didn't expect him to actually do it."

Upon hearing this, Lin Wanqiu's anger flared up: "It really was him! Uncle Li, thank you so much! Your words are very important to me."

After leaving Grandpa Li's house, Lin Wanqiu decided to take the initiative. She wrote a letter of complaint, detailing Zhao Jianjun's slander and defamation of her, and then personally delivered it to the office of the commune leader.

"Sir, I hope you can uphold justice for me. Zhao Jianjun deliberately spread rumors and slandered me to sabotage my business, causing my cooperation with the supply and marketing cooperative to be suspended. I really haven't done anything illegal; my tofu business was built entirely through my own hard work," Lin Wanqiu said sincerely.

The commune leader took the letter of complaint and read it carefully: "Comrade Lin Wanqiu, rest assured, we will definitely investigate this matter thoroughly. If Zhao Jianjun has indeed done something illegal or disorderly, we will certainly not tolerate it."

A few days later, the investigation results were released. Zhao Jianjun was severely criticized by the commune leaders for spreading rumors and slandering others, and was required to apologize to Lin Wanqiu. At the same time, the supply and marketing cooperative resumed its cooperation with Lin Wanqiu.

"Comrade Lin Wanqiu, we misunderstood you before. After investigation, we found that you are an honest and trustworthy person, and your tofu business is indeed doing very well. We hope to continue to cooperate with you and contribute to the development of the commune together." Director Zhang personally came to Lin Wanqiu's home to apologize to her and express his willingness to continue cooperation.

Lin Wanqiu was so moved that tears streamed down her face: "Director Zhang, thank you so much! I will definitely work hard to make good tofu and live up to your trust."

From then on, Lin Wanqiu's tofu business flourished. She not only supplied tofu to the supply and marketing cooperative on time, but also opened a tofu workshop in the village, boosting the village's economy. Zhao Jianjun, because of this incident, became much more restrained and no longer dared to bully others easily.