Summoning soldiers from beans was a difficult technique. Even at the late stage of Essence Condensation, it was impossible. To control beans required immense essence energy or yin-soul qi. Without that control, the beans couldn’t move.

The most powerful version could turn beans into human forms, achievable only at the Void Return Realm. Initial techniques required reaching the Spirit Formation stage to control essence energy or yin-soul qi proficiently, using it to control beans.

This girl, at the early stage of Spirit Formation, controlled essence energy to such a terrifying degree. He thought her cultivation was superior because of diligent practice, but it was far beyond that—it was terrifying.

Gu Qin had reached the Spirit Formation stage in her previous life and could barely summon soldiers from beans. This life, with her Heavenly Eye and refined control over essence energy and yin-soul qi, summoning soldiers from beans was effortless.

Gu Qin ignored Song Langtian’s shock. He wouldn’t dare charge recklessly, knowing his essence energy was nearly depleted and possibly injured.

Each bean carried a small amount of essence energy, but collectively, they could control his movements and injure him. Attempting to break free would result in injury.

Song Langtian didn’t attempt to break free. He swept with his palm, dispersing the bean soldiers instantly.

Song Langtian frowned. Although these bean soldiers were not very powerful, if he forcefully broke out, his internal injuries would worsen. If the girl opposite still had a considerable amount of energy left in her body, she would surely take advantage of his worsening condition to deliver a fatal blow.

Song Langtian did not want to take risks, but if he continued to tangle with these bean soldiers, the energy within him would be completely depleted, making it even more difficult for him to escape later.

Gu Qin saw Song Langtian's gloomy expression and whispered, "If you surrender and accept legal punishment, I will spare your life."

Song Langtian looked up and sneered, "Do you think ordinary people are worthy to punish me?"

"Don't forget, you're just an ordinary person too. Your parents, relatives, and friends are all ordinary people. Even when you were young, you were just an ordinary child. Why do you look down on others?"

Song Langtian sneered again and did not respond. He was about to raise his palm to shatter the bean soldiers when suddenly his whole body stiffened. He could not move at all. What was happening? The cold sensation on his body was due to yin sha qi (cold evil energy). When did this girl use yin sha qi to secretly control his movements? He looked up at Gu Qin—

Gu Qin naturally took action while he was distracted dealing with the bean soldiers, using yin sha qi to control his movements. She naturally would not miss this opportunity. The Flowing Light, which had been suppressing its aura, had already been drawn out. Without the aura suppression talisman restraining its energy, the Flowing Light wanted to show off, causing its yin sha qi to surge. Gu Qin already held it and was about to stab Song Langtian's chest.

The last bit of Song Langtian's gaze was fixed on the sharp tip of the Flowing Light, directly aiming at him. The yin sha qi on it was so strong that even he could sense it, making him almost unable to bear it. At the moment of his death, Song Langtian thought, why, why does she have such a powerful attack weapon...

The Flowing Light pierced into his chest, and Song Langtian fell straight to the ground. As he fell, Gu Qin withdrew the energy around her, and the surrounding bean soldiers immediately fell to the ground, rolling into the wasteland beside them.

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The Flowing Light still stuck in Song Langtian's chest. Gu Qin took a deep breath and slowly squatted down, reaching out to check his breathing, which was already gone. She pulled out the Flowing Light from his chest and sat down beside him, disregarding any decorum.

The Flowing Light buzzed, seemingly protesting that it had been restrained until now. Gu Qin couldn't help but laugh, "What are you protesting for? If I had taken it out earlier, he would have been more cautious. My cultivation level is far lower than his. If he became more alert, I might have had no chance of winning. And given how powerful you are, he would have become greedy and tried to seize you, using all his strength against me. Now is perfect timing. His energy is almost depleted, and I used yin sha qi to control him without him noticing. That's why I used you to finish him off."

The Flowing Light gradually quieted down. Gu Qin wiped the blood off it, put it away, and took out her phone to call Huang Kun. It was already four o'clock in the morning. Huang Kun answered quickly, "Student Gu?"

Gu Qin nodded, "He's dead. We're currently at the construction site in the northern part of the city. Come over here. By the way, have you collected evidence from his house?"

Huang Kun breathed a sigh of relief, "Don't worry, Student Gu. We've already been to his house and collected blood samples from five victims. So the charges are definitely solid. Even if he's dead, it doesn't matter. You should rest first; we'll come right away!"

Since they had found the evidence, Gu Qin felt relieved. After hanging up, she couldn't resist using her Heavenly Eye to look at Song Langtian and was curious about his past.

Naturally, she couldn't start from his childhood, but she picked some important events to observe, such as where he went after being adopted by relatives, why he broke up with his girlfriend, how he practiced before, and why he killed people.

As a child, Song Langtian was also an ordinary kid. His parents died in a car accident. Finally, an old man came and told him he was his relative, taking him away. The old man wore strange black Tang suit, with many wrinkles on his face, looking somewhat frightening. He took Song Langtian to a secluded mountain village surrounded by mountains. The old man seemed to adopt many children like Song Langtian, teaching them cultivation and some esoteric knowledge. As the children grew up, they received education in the small village.

Song Langtian studied in a nearby town until he was fifteen, then returned to Liangping City to inherit his parents' estate and start school. During this time, he occasionally saw the old man.

At the age of fifteen, Song Langtian started finding women with matching birth dates to cultivate through absorbing their yin energy. He would first bewitch their minds and then let them willingly come to him. At that time, he did not harm those girls. When some girls weakened, he would let them go and find another one.

When he graduated from university, he dated a girlfriend. They were deeply in love, but his girlfriend had a strong yang aura, unsuitable for his cultivation method. So although he dated her, he continued to cultivate by absorbing the yin energy from other girls. When he was twenty-nine, he planned to marry his girlfriend. However, she discovered his secret and thought he was cheating. She was heartbroken and wanted to break up. He disagreed, but no explanation worked. Eventually, he confessed truthfully, but his girlfriend looked at him as if he was crazy.

When he demonstrated his power by destroying a table, she was stunned but could not accept his actions for cultivation. In the end, she decided to break up. He disagreed but didn't expect her to disappear when he returned home from work.

Afterwards, his personality changed, becoming darker. In September last year, he directly murdered the girls during his cultivation. As for why he chose Ma Family's villa, it was because the daughter of the Ma family was once an object of his cultivation. He was familiar with the Ma family, who had emigrated abroad, so he chose their house for his first crime.

Regarding why he kept the victims' blood, Gu Qin saw from the Heavenly Eye that he collected their blood for the old man before, under voluntary conditions. Gu Qin didn't know who the old man was or why he needed the blood. The old man rarely visited Song Langtian, sometimes only once every two years.

The blood samples of the five victims left at Song Langtian's house clearly indicated that the old man hadn't come yet, otherwise the evidence wouldn't have lasted until now.

Gu Qin stopped observing after getting a general idea. By now, dawn was breaking, and the sound of police sirens could be heard in the distance. Gu Qin turned on her phone flashlight, and they quickly found her and saw the body next to her.

Huang Kun helped Gu Qin stand up, "Student Gu, how about you come with us to the police station for something to eat?"

Gu Qin didn't refuse. A few young policemen carried Song Langtian's body to the police car, and the group left the construction site.

Back at the police station, the officers got busy. Huang Kun called his superiors, reporting the situation truthfully. This case was delicate, so better to let the higher-ups decide how to report it.

Gu Qin sat in the warm lobby. The plainclothes female officer brought her a cup of instant noodles and apologized, "Student Gu, this is all we have right now. Would you like to eat it?"

Gu Qin accepted it with a smile, "Thank you."

The young female officer sat next to Gu Qin, admiring her, "Student Gu, you're amazing."

"Overpraising," Gu Qin couldn't help but sigh inwardly.

The young female officer chatted enthusiastically with Gu Qin, "The girl who came back to give testimony is still inside, sleeping. She was very emotional when she first arrived, accusing you of framing her and revealing the grudges between you and her cousin. But after our team leader showed her the evidence from the victim's families and the evidence we found at the suspect's house, she finally shut up."

Gu Qin slurped her noodles, swallowing a mouthful before speaking to the young officer, "She was just shocked and confused. She'll recover soon."

The young officer kept talking, and when she saw Gu Qin finish eating, she immediately threw the trash in the bin and asked if Gu Qin wanted more. Gu Qin was indeed hungry and ate another bowl before feeling full.