The butler stood outside the door, anxiously peering inside. The ward was filled with doctors and nurses, and the boy's painful screams echoed throughout the room.

"Don't tie me up! Let me go!"

"I told you to go find your sister! Go find her! Go find her!"

Shi Si broke free from one of the people's hands, grabbed a syringe from the side, and injected the person closest to him.

"Young Master, calm down, calm down!" Shi Si couldn't stop him. Several cuts appeared on his face, and blood dripped down.

After he said he didn't have a sister, the boy went crazy. His eyes were bloodshot, and he kept muttering "sister" as if he had lost his most important and precious thing.

But Shi Si had no idea what he was talking about.

The young master is an only child.

The Shi family was small, and Shi Youxi didn't even have any cousins, so where would she get an older sister?

But the most urgent task was to appease Shi Youxi, so Shi Si could only lie and say, "I'll go find him! Young Master, I'll go find him right now."

But Shi Youxi seemed to realize something and insisted on going to find it herself.

The boy was lost in his own world, ignoring everything others said, and kept struggling to run away.

"My sister is here. I'm going to find her. She's waiting for me."

His sister is definitely waiting for him safely in the villa.

They were just playing hide-and-seek, just like when they first met.

Shi Youxi couldn't see anything. He had injured many people with that small syringe, and the doctors and nurses around him were hesitant to approach him.

Taking advantage of the moment when they dodged, Shi Youxi instantly ran to the door. He saw the worried butler outside the door and rushed over to him as if he had found a lifeline.

"Uncle Lin! Is my sister at the villa? She's waiting for me to come back, right?"

The butler was shocked that the boy had managed to inflict so many injuries on himself in such a short time, reopening old wounds that had healed in half a month. He said with concern, "Young Master, you should take good care of yourself first—"

The next second, the butler's collar was grabbed, and the boy, violent and ruthless, held a sharp syringe straight at the middle-aged man's eyeball.

"I'm asking you, is my sister in the villa? Is she? Take me back!"

The butler was sweating profusely. He didn't know which sister Shi Youxi was talking about. He wanted to comfort him but couldn't say anything. The boy's emotions were already at their peak and he could fall to the bottom if he wasn't careful. He couldn't stand any stimulation. When he saw the butler's hesitant and evasive expression, his pupils dilated and the syringe he was holding up fell.

The boy froze the next second, his body slumped against the butler.

"Ah, young master!"

The tattooed man caught Shi Youxi, picked up the boy, and carefully placed him on the hospital bed. "Please give the young master a sedative and a sleeping pill."

The doctor had the same idea. While arranging for someone to administer the medication, he said to Shi Si, "It seems that the young master's injuries are not only physical. I suggest we check whether his brain has been damaged."

Toki: "...I understand."

Once everything quieted down, Shi Si wearily bandaged himself up. "Brother Bi, what should we do? What's the deal with that sister the young master was talking about?"

How would I know?

When the tattooed man arrived, he only saw Shi Si going crazy and didn't know the whole story. Now, after hearing what Shi Si said, he was even more confused.

The tattooed man touched his two-centimeter-long buzz cut, humming and groaning for a while. Suddenly, a flash of inspiration struck him, and he clenched his fist and slapped his left palm!

"I know, could it be that the young master is in a relationship?"

"Or is he someone older than the young master at school?"

The tattooed man became more and more certain as he spoke, "The young man is still in the ambiguous stage of their relationship, and they've been texting non-stop. If this stops for a week, he'll definitely get anxious."

Shi Si clicked his tongue and retorted, "That's not right. Putting aside whether the young master even gave those people a second glance, he's never brought anyone home. He doesn't even have a single friend..."

Shi Si choked, "No, he has friends."

Although Shi Si and Shi Youxi are not in the same teaching building, they still occasionally run into each other at school. Every time, a boy can be seen behind Shi Youxi.

On the day of the birthday banquet, she also learned the identity of the boy: Guan Shiyan, the grandson of the old man.

With a snap of his fingers, the tattooed man said, "That makes things easier. We'll just grab that kid and ask him a few questions."

He had a cigarette dangling from his mouth, though he wasn't smoking it. But with his exposed tattooed arms and menacing build, he didn't look like someone who had come to ask Guan Shiyan for help at all. He looked like he was about to strip Guan Shiyan naked and bury him in a pit deep in the mountains at any moment.

"So I'm saying, you really don't know what the young master's girlfriend is at school?"

Guan Shiyan hugged his schoolbag tightly, looked at the tattooed arm that was thicker than his face, and swallowed hard: "I...I don't know."

"That shouldn't be... Could it be an online romance?"

Guan Shiyan replied without hesitation, "Student Shi never looks at her phone."

After saying that, he froze. He never looks at..., right?

The tattooed man looked at Guan Shiyan with disdain, trying to determine the truthfulness of his words. At the same time, Guan Shiyan was also secretly observing him, although in the tattooed man's eyes, Guan Shiyan was staring straight at him.

"This kid has such big eyes, even a ghost could see he's staring at me." "What are you looking at?" The tattooed man, arms crossed, bent over and looked at him. "Are you lying?"

“Hmm…” Guan Shiyan shook his head, pointing to the flowers on his arm. “Uncle, you look a little familiar.”

"Familiar? That can't be right. We're meeting for the first time today. This tattoo is one-of-a-kind; there's no way there could be a matching one."

While the man with the full-sleeve tattoo was still wondering if he had been ripped off by the tattoo shop owner, Guan Shiyan had already started backing away, preparing to slip away.

"Why are you running? Aren't you going home after school? I'll take you." He grabbed Guan Shiyan's backpack strap with such force that the backpack was pulled open, and the textbooks and candy inside fell out one after another.

"You little rascal, you really love sweets, unlike my young master..."

Guan Shiyan woke up late that morning and haphazardly stuffed his textbooks into a schoolbag before running out. He didn't even notice that there were so many candies in the bag. As he picked them up, Guan Shiyan casually replied, "They're not mine. They're the ones my family wanted to give to Sister Mu when we went last time... um."

Tattooed arm: "Sister Mu?"

"Who is Sister Mu?"

Guan Shiyan was also stunned. He looked at the tattooed arm with a puzzled expression and asked, "Right, who is Sister Mu?"

"?"

Tattooed arm: "......You're asking me? Then who should I ask?" What's wrong with kids these days? Do they all have the memory of fish?

Guan Shiyan didn't know why he suddenly mentioned this person.

Although the tattooed arm looks silly, it's someone who works under Shi Yan and has a keen sense that Shi Youxi is probably looking for the "Sister Mu" that Guan Shiyan mentioned.

"Think about it carefully. What's that lady's name? You said you were going to give it to her when you went to the Shi family. Was she also a guest that day?"

But that doesn't make sense; there isn't a single prominent Chinese family in the entire capital with the surname Mu.

"I...I don't know."

Mu... his surname is Mu.

With his tattooed arms scratching his head, he suddenly remembered what the police officer had said about the female corpse that had been trapped in the tunnel during the cleanup.

His surname is Mu!

"Thanks, kid. I'm off now. I'll take you home next time." The tattooed hand pressed down on Guan Shiyan's head and gave it a hard rub.

Guan Shiyan felt like his brain was being churned up. He tidied his hair a few times, but then a hollow voice suddenly appeared in his ear:

"If you're scared, find the person with the drawing on their body to take you home, okay?"

"...Why...why am I hearing this sound?"

I've never heard of it before, yet it sounds so familiar. Who told him this...?

*

He rushed back to the hospital without stopping. As soon as he entered, he saw Shi Si sitting on the sofa next to the hospital bed, looking a little disheveled.

"I know who that woman is now. What happened to you, kid?"

Shi Si waved his hand, looking at Shi Youxi sleeping on the hospital bed, "The young master just woke up, let's go outside to talk."

"The young master's condition is not good right now. We have arranged for a neurologist to examine his brain."

"Brother Arm, what brings you here? Did you find the person the young master mentioned?"

The tattooed man nodded: "I asked the young master's only friend, and he said it was a woman surnamed Mu. He didn't know anything else."

"And... we can see them right here at the Shi family's house."

Shi Si: "Surname Mu?" Shi Si's expression turned serious: "Could it be that he's the one who died in the tunnel—"

"Who died in the tunnel?"