Sold into a ghost marriage? Four-year-old and his thuggish father go on a killing spree.

"They won't believe a child."

Looking into her father's bloodshot eyes, Gu Niannian spoke clearly, word by word:

"But they will believe the evidence."

That night, the Gu family's dilapidated mud-brick house was brightly lit.

Little Gu Niannian has become the commander-in-chief.

Her father, Gu Yanqiu, became her most capable soldier.

"Dad, aren't there some yellowed papers at the bottom of that earthenware jar where we store salt? Those are the purchase receipts you gave to the supply and marketing cooperative when you sold the mountain produce. Find them quickly!"

"Dad, where's the letter of recommendation Grandpa Cheng gave you? The one you wrapped in oil paper and hid in the crack in the wall by your bed!"

"And also! Keep the letter from Aunt Li Huilan and Mom's identification documents close to you. Take them out! These are the most important pieces of evidence!"

Gu Yanqiu was being bossed around by his daughter, but his heart was becoming clearer and clearer, and he was becoming more and more confident.

Following Niannian's instructions, he rummaged through every corner and found all the items.

Those things he treasured but didn't know how to use were transformed into sharp weapons under his daughter's guidance.

Gu Niannian carefully spread all the papers out on the table.

She then found another notebook where she practiced writing, turned to a new page, and with the stub of a pencil, in an almost reverent manner, wrote a few large, crooked characters:

"Self-evident materials regarding the issue of Comrade Gu Yanqiu"

Then, she looked up at Gu Yanqiu and said:

"Dad, physical evidence alone is not enough; we also need witnesses."

"Go find three people first thing tomorrow morning."

"First, go find Aunt Wang. Ask her to testify how you've worked tirelessly from dawn till dusk since we separated from the family, and how you've taken care of me. She's the head of the women's committee in the production brigade, so her words carry weight."

"Secondly, go find Mr. Zhao from the literacy class. He's a retired, highly respected teacher. Let him prove that I, Gu Niannian, am mentally sound, not a kidnapped idiot, and that I can still get first place in the class!"

"Third, go find Uncle Chen Zhiyuan. He's a former educated youth from the county, he's cultured, and his status is special. Let him testify that my daughter and I have been working hard to learn, actively seeking progress in our thinking, and we're not bad elements!"

Gu Yanqiu was so shocked by her daughter's arrangement that she was speechless for a long time.

This is hardly a five-year-old child.

This is clearly a strategist with exceptional skill!

He looked at his daughter's serious little face under the lamplight and nodded emphatically: "Okay! Daddy will listen to you!"

The next day, just as dawn was breaking.

The investigation team's black Volga truck drove into Chengjiawan.

The village was instantly in an uproar.

"Look, that's the car! I heard the second son of the Gu family got into trouble in the county!"

"I told you, that family is unlucky! Their daughter is a jinx!"

Amidst the gossip, the two cadres, led by Cheng Tiezhu, walked toward the Gu family with grim expressions.

They were prepared to face a family that would throw tantrums and act unreasonably.

Or it could be a mess of poverty, with nothing to show for it and no one to know anything.

However, when Cheng Tiezhu pushed open the dilapidated gate of the Gu family's courtyard, everyone was stunned.

The yard wasn't big, but it was swept clean.

Under the eaves, a tall man and a small girl stood side by side, as if they had been waiting for a long time.

Gu Yanqiu changed into a clean shirt, which was patched, but he stood up straight.

Gu Niannian was also wearing her cleanest clothes, her face was tense, and her eyes were bright.

"Hello, comrades."

Gu Yanqiu stepped forward and said in a humble yet assertive manner, "Regarding my question, my daughter and I have prepared some materials for you to review."

As he spoke, he turned to the side, revealing the old, worn-out square table in the room.

On the table, stacks of documents were neatly arranged and categorized.

On top of each stack was a slip of paper with a title written in childish handwriting:

Part 1: Explanation of the "lazy man" problem.

(Includes: original recommendation letter from Captain Cheng Tiezhu, handwritten work certificate from the foreman of the Baiyang Commune brick kiln, and a joint letter of character certification signed by three neighbors, including Aunt Wang, with their red handprints.)

Part Two: Explanation of the "Speculation and Profiteering" Issue.

(Includes: three original mountain product purchase receipts issued by the Qinghe County Supply and Marketing Cooperative.)

Part Three: Explanation of the issue of my daughter's "unexplained origins".

(Includes: letters and belongings of the deceased wife Song Wanqing, a certificate from Li Huilan of the county textile factory and a copy of her official identification, Gu Niannian's report card from the village literacy class, and a handwritten certificate from the class teacher Zhao Wenhai.)

The two investigation teams were completely dumbfounded when they saw the "materials" in front of them, which were comparable to those in the commune's archives.

In all the cases they've handled, they've never seen a subject of investigation prepare their self-evidence materials so thoroughly, so clearly, and so... systematically!

The leader stepped forward with some skepticism and picked up the "catalog" written by Gu Niannian at the top.

He looked at the crooked yet meticulously written characters, then at the little girl standing beside him who only reached his thigh, and his throat went dry.

He looked up and asked Gu Yanqiu in an incredulous tone:

"These... these, your daughter... tidied them up?"

For the first time, Gu Yanqiu's face revealed a genuine and incredibly proud smile.

He nodded emphatically.

"Yes, she is my daughter."

The head of the investigation team remained silent.

He lowered his head and flipped through the materials page by page.

Letters of recommendation, certificates, acquisition orders, performance reports... each one is irrefutable evidence!

Every piece of evidence was like a resounding slap across the face, striking that anonymous whistleblower letter hard!

He flipped through it for a full ten minutes, and the office was completely silent.

Finally, he closed the document and let out a long breath.

He raised his head and looked at Gu Yanqiu with a completely new, even slightly admiring, gaze.

"Comrade Gu Yanqiu, we understand the situation."

"All your materials are clear, conclusive, and the evidence is irrefutable. The three accusations in the whistleblower letter have been verified and are all unfounded!"

He paused, then turned his gaze to the little girl who had remained silent throughout, and sincerely added:

"Personally, I think...you have a wonderful daughter."

The turmoil has now subsided.

The false accusation will fall apart on its own.

Gu Yanqiu's work has resumed.

As the investigation team's car left Chengjiawan, Gu Yanqiu lifted her daughter high above her head!

"Niannian! We won! We won!"

Under the sunlight, the laughter of the father and daughter carried far and wide.

However, once the initial joy subsided, Gu Yanqiu held her daughter and looked in the direction of the county town. In her eyes, which had just regained their clarity, a cold flame reignited.

Wang Jianguo, who was hiding in the shadows and wanted to kill the father and daughter, was still safe and sound at the agricultural machinery station.

The snake, its tongue still flicking, was still hiding in the grass.

Should we just give up and settle things peacefully?

Or... take the initiative and completely remove his fangs?

Gu Yanqiu lowered his head and softly asked the daughter in his arms, as if he were also asking himself:

"Niannian, tell me, what should we do with the person who harmed us?"