After the Gu family's car drove away from the South City Noble Academy, the little girl seemed to hear an angry snort coming from beside her.

Nuannuan——"???" She turned her little head to look at her little brother, but saw that he was hugging his arms, slightly raising his chin and tilting his head to the other side.

Did she hear it wrong? "Humph!"

This time the sound was more obvious. Gu An glanced at Nuan Nuan, hummed deliberately and turned his head away.

Nuan Nuan's eyes were blank - "Brother, what's wrong with you?"

Gu An——“It’s okay!”

Nuannuan stared at him, blinked, said "oh" softly, and said nothing more.

Gu An——“…” One more question: Have you gained some weight?

"snort!"

Nuan Nuan——"..." The little brother looked like his throat was not feeling well.

"Let me ask you, whose biological sister are you?"

My sister doesn't seem very smart, so don't expect her to figure things out on her own.

Nuan Nuan held his hand with her little hand and shook it gently, and said in a soft voice - "It's your sister, brother."

Gu An——"Then you treat Gu Mingli better than I do!"

Nuan Nuan seriously corrected him - "That's Fourth Brother, Nuan Nuan's Fourth Brother, and Little Brother's Fourth Brother."

"How can there be a brother who always goes against his younger brother?"

"But he is our fourth brother. If you don't believe me, ask dad."

Gu An was choked for a moment, reluctantly speaking, but he quickly realized that the topic had gone off track, and immediately put his hands on his hips with a fierce look on his face.

"Isn't that what I was talking about? Are you stupid? You'll have to rely on me to protect you in school!"

Nuan Nuan looked at him innocently——"Ah, brother is so awesome?"

Gu An——"..." After a long while of talking, Nuan Nuan finally figured out what was going on. His little brother's words were sour, as if...

"Brother, are you jealous?"

Nuan Nuan hit a straight ball and Gu An instantly blushed with embarrassment. He retorted loudly - "How is it possible! Ha, jealous? What is that? I will never be jealous!"

Gu Linmo, who was driving in front, glanced at the recording equipment in the car and decided in a good mood to save his younger son's heroic words and play them out again when he was slapped in the face in the future.

"Keep your voice down, don't scare your sister. Who are you talking to, young master?"

Mr. Gu's voice was cold and Gu An shrank his neck. A real man can bend and stretch. He just didn't say anything about the young master.

"Anyway, I can't possibly be jealous!"

Nuan Nuan nodded obediently - "Yeah, I got it, brother is not jealous."

Gu An snorted and said nothing. In the night, a black Maybach drove to the Gu family villa. Accompanied by a burst of dog barking, the deserted villa became lively again.

Gu Mingli's expectation was not realized in the end. Because the next day, Gu's mother took the little boy to the amusement park and water park for a day. Nuan Nuan was undoubtedly excited all day. But after the excitement, the little boy was so tired that he fell asleep.

Even Gu An didn't wake up to pick people up after school.

Gu An ran out of the school gate excitedly but only saw his father getting angry after feeling disappointed.

He threw his schoolbag onto the bus with a pretty face and started sulking as soon as he sat on it.

But he just said nothing, huh! Who cares if you come to pick me up?

Gu Linmo looked away from the tablet and was speechless for a moment when he glanced at his youngest son, whose expression changed all the time and he was not very good at hiding his emotions.

"Why didn't you ask Nuan Nuan why she didn't come to pick you up today?"

Gu An snorted loudly - "Who needs her to pick me up? It's not like I can't go back by myself!"

You sound stubborn, but you're so angry now. Are you sure you don't care?

Forget it, let my little son be angry on his own.

After returning home, Gu An looked around, but unfortunately he still couldn't see the little figure.

He pretended not to care - "Grandpa, why didn't the little girl accompany you today?"

Grandpa Gu glared at him - "What little girl? She's your sister!"

After taking a sip of tea, he slowly said under Gu An's eager gaze - "Your mother accompanied Nuannuan to the amusement park and water park today. The little girl probably played too much for the first time. She was so tired that she fell asleep in the car when she came back. She is still sleeping now."

After hearing this, Gu An's little knot in his heart finally eased a little, and he went upstairs muttering to himself.

"Mom, why don't you wait until I have a day off before going out to play?"

After running upstairs, Gu An put down his schoolbag and ran out again, then quietly sneaked into Nuan Nuan's room.

In the spacious, bright and cozy room, on the soft big bed, the little Nuan Nuan was sleeping on her side, hugging a rabbit doll, with half of her face buried in the quilt. Gu An could only vaguely see half of her furry head sticking out from behind the pillow, with her fluffy black hair hanging down like everyone else's. With her long and even breathing, the little bag covered by the quilt also rose and fell evenly.

Gu An walked over quietly and took down the rabbit doll, revealing Nuannuan's sleeping appearance.

Two soft and fluffy little hands were placed on the side of the head, with ten soft fingers slightly curled up. They did not look fleshy, and there were even some slight wounds and bruises on the fingers and palms.

The little fellow with a rosy face sleeping at this moment is as well-behaved as when he is awake, just like a harmless little animal.

When Nuannuan closed her eyes while sleeping, her curled eyelashes looked like delicate little fans. Under the soft light, the little fan cast a small shadow under the eyelids. Her delicate facial features and motionless and quiet appearance made her look more like a carefully carved doll.

No matter how you look at it, it looks like it's easy to bully. But at the same time, it also makes people want to protect this fragile-looking little doll.

Gu An placed his fingers between Nuan Nuan's slightly curled fingers and pinched her palm. When his fingertips touched the cord and tiny wounds on his sister's palm, a pain that he himself was not aware of emerged in his eyes.

He was still a child when his sister was lost, and he didn't remember whether he felt sad at that time. Childhood memories are always easy to lose. So in the three years when Nuan Nuan was not found, time may have diluted a lot of things. He had a vague impression of his sister and didn't seem to have much affection for her.

But now, seeing the wounds exposed on his sister's small hands, Gu An hated for the first time anyone who had participated in kidnapping his sister.

"Um...brother."

Nuannuan curled up her fingers and slowly clenched them, and slowly grasped Gu An's fingers. Nuannuan's eyes opened slightly, and she vaguely recognized the person standing in front of the bed. Before she was conscious again, she called out "brother" in a soft and milky voice.

The call of "brother" gave Gu An an inexplicable sense of responsibility. He had never treated himself as an adult before. He wanted to protect this chubby sister under his wings and didn't want her to get hurt at all.