"Hey, honey, where are you?"

"Manting, I'm at the supermarket, what do you want to eat? I'll buy it back for you? "

"The one at the end of the street?"

"Yes."

"Let me think. I want to eat watermelon, strawberries."

"Fine, just wait. I'll bring it back to you!"

After hanging up the phone, Langmu walked into the supermarket with a smile on his face. What he didn't know was that behind him, there was a slightly sneaky figure standing at the corner of the street. That person's eyes never strayed from Langmu's back.

After a few minutes, Rangmu picked up his wares, walked to the checkout counter and left. The figure gave Rangmu another deep look before turning around and leaving. He wore a simple T-shirt, jeans, and loose clothing that did not distinguish between men and women. The peaked cap and sunglasses covered most of his face, revealing only a little bit of his white chin.

A man brushed past him as the T-shirt reached the center of the street. Suddenly, his body stopped — the tall man had grabbed his arm from behind.

The T-shirt looked back suspiciously. Separated by a thin layer of sunglasses, he saw that the man had a pair of bright and dark eyes. He had a smile at the corner of his mouth, but his body exuded an air of unconcealable coldness.

"Who are you? "Why are you holding me back?" The T-shirt opened its mouth and even though it had lowered its voice, the unconcealable sweetness of its voice betrayed 'he' – 'he' was actually a woman!

"Sorry, sorry about that." Seeing that the other party was a woman, the man quickly let go and said with a slightly apologetic voice, "Hello, I'm Lu Xiang."

"Lu Xiang?" Zhang Manting frowned. "I'm sorry, I don't seem to know you."

That's right, this deliberately camouflaged T-shirt is Zhang Manting. Because she was following someone. This person was none other than her boyfriend, Langmu! Initially, the reason why she agreed to Longmu's request was so that she could secretly investigate Langmu and finally solve the mystery of the love cycle.

"Of course, this is the first time we've met." Lu Xiang's attitude was unperturbed. "I came here following a special aura from your body."

"A special aura?" Lu Xiang's words were very baffling, but for some reason, Zhang Manting felt that everything he said was true.

"Mm. Miss, has something strange happened to you recently?"

"Recently?" Zhang Manting gave a wry smile, "Not just recently..." All these years, I've been living in a weird cycle of death. Mr. Lu Xiang, how did you know? Could it be that you smell sadness and despair from my body? "

"Because I'm a Underworld detective." Lu Xiang said, "And you just happen to have a strong scent of underworld items on you. I dare say that you must have had some sort of grudge with some evil underworld object. "

"Underworld item?"

"Yeah, these are some items from the underworld that are scattered around the human world. They are dark and evil. If they are used by people with ill intentions, they will often bring a great disaster to the human world …"

Disaster? Everything that had happened to him was not a disaster, a repeated disaster!

"Mr. Lu Xiang, help me. You must help me." Zhang Manting suddenly grabbed onto Lu Xiang's arm excitedly, "I've had enough. After so many years, I've had enough! "I can feel that everything you say is true. You can definitely help me, can't you?"

"Miss, don't be so agitated. Let's go find a quiet place to sit and chat …"

"..." Sometimes, I think, maybe all boyfriends are the same person, but every two years, he will change a new face. They are so alike, so horribly alike... Within half an hour, the newborn baby would grow up, age, and die naturally. How can this be explained by science? "From the female supervisor to that innocent woman, why do cases of 'Old Man's Baby' always appear around me?"

In a quiet corner of the coffee shop, Zhang Manting excitedly recounted what she had experienced during the past eight years. Lu Xiang listened very attentively. From time to time, he would furrow his brows and reveal a thoughtful expression.

"Mr. Lu Xiang, tell me, why do these weird things happen to me?" At this point, Zhang Manting's eyes were already filled with tears.

"This must be an evil item from the Underworld." Lu Xiang said in a confident voice, "Miss Zhang, love has no fixed cycle, happiness depends on you to strive for it. Don't worry, from today onwards, I will investigate the love cycle and the truth of the 'Old Man's Baby' with you. You should stop stalking Rangmu from now on. It's very dangerous. "

"Langmu is a cautious person. I always follow him carefully." Zhang Manting said, "But, other than following him and seeing what abnormal actions he has, I can't think of any other way!"

"Leave stalking to me, the underworld detective." There was a hint of a smile in Lu Xiang's eyes, "And what you need to do is to live and work as usual, so as to not reveal yourself in front of him and arouse his suspicion."

"Yes." Zhang Manting nodded in approval.

"..." According to the news, this was the third case of 'Old Man's Baby' in the city. Some anthropologists said that this could be a genetic mutation. But what about the sudden attack on the victim before she got pregnant... "

A slightly frightened voice came from the television. Zhang Manting could not bear to watch this, so she closed her eyes, not daring to look at the old man's corpse, which still had umbilical cord blood on it. A ghastly mist surrounded her body, and it lingered all year round.

"I want us to be together and never separate from each other …" The sweet and crisp ring tone of her cell phone rescued Zhang Manting from her fearful and uneasy atmosphere. She quickly picked up her cell phone and, without even looking at the screen, pressed the answer button.

"Hello, Miss Zhang. Hello." A clear voice came from the other side, "I'm Lu Xiang."

"Hmm, I can hear your voice. What do you think? Have you found anything new?" Zhang Manting said as she carefully watched the door of the living room. She had to guard against Rangmu's sudden appearance.

"Yes." Lu Xiang's voice was somewhat heavy and sluggish, "Actually, before I came here, I had already investigated and found out that in the past eight years, there have been many 'old man's baby' cases. These cases follow the same pattern as those of unknown criminals attacking innocent women, who often stab their victims in the stomach with unknown weapons. The wounds were not obvious, and they were not painful or itchy, but without exception, these women would get pregnant within a week. Even if they did not have the experience of a man or a woman, they would still give birth to infants who would quickly die of old age. "Some of these 'old man's baby's cases' were exposed by the media while others were blocked by the relevant authorities. You must know, if these cases were exposed, it would definitely cause panic in the public."

"Eight years?" Zhang Manting's face was deathly pale. "This is exactly the time that I've been dating for four times. This … this can't be another coincidence, right?"

"I went to the funeral parlor and saw the bodies of a few old men and babies. I could smell the strong scent of underworld items on their bodies. You can also smell this kind of scent." Lu Xiang hit the nail on the head and said, "And on your current boyfriend, Langmu, the smell is the strongest. I am almost certain now that he was the one who made the many cases of the old baby! "

"I've already guessed that, but what about the past eight years? Who was the one who made the baby case? Is it going to be my previous boyfriend? " Zhang Manting bit her pale lips. "What does these cases have to do with my love cycle? It can't be that they're harming others because of me, right? "

"I think there must be a special relationship between all your boyfriends. Perhaps, as you said, they are the same person, but every two years, they change their skin." A golden light flashed in Lu Xiang's eyes, "Miss Zhang, I found a rule — the criminals commit the crimes on the 15th of the same month. We can use this point to verify whether the culprit is your current boyfriend, Langmu."

"Number 15?" Zhang Manting was a little excited, but also a little scared, "Today is already the 11th, will it be this month?"

"I'm not sure, but we can try."

"Try?" What do you want to do? "

"No." Lu Xiang shook his index finger, "You have full responsibility for this."

"Me?"

"Yes." Lu Xiang lowered his voice and continued, "So it's like this …"