My senior sister is not a human being!

Su Yuxi happily hugged Su Yuchen's arm and said, "Brother, are you going back to school the day after tomorrow?"

"Yeah." Su Yuchen nodded: "It doesn't matter whether we hold a class meeting or not, the instructor is now Senior Tia anyway."

"So, brother, you went to the Western Continent to find her?" Su Yuxi looked at him: "The vampires and werewolves started a war, brother, you were not affected, right?"

"Tia is the queen of the night." Su Yuchen did not hide it.

"I knew it~" Su Yuxi curled her lips: "You were the one who killed Wolf Ancestor, right?"

"How did you know?"

"Now Higurashi's intelligence gathering ability is much better than my brother imagined~" Su Yuxi said proudly, without revealing any flaws: "And recently, not only that, it feels like intelligence gathering is going very smoothly."

Su Yuchen nodded. On Christmas Eve, he reached an agreement with "Sky" to let it assist his sister. It seemed that it was indeed doing something.

Artificial intelligence is quite obedient.

Su Yuxi glanced at him secretly, thinking that she had deliberately talked to him in the name of "Sky" on Christmas Eve, so of course she remembered these details.

"That's good." Su Yuchen touched Yuxi's head: "Thank you for your hard work."

"Not at all!" Su Yuxi blinked and looked at Su Yuchen: "For my brother, this little bit of hardship is nothing."

Su Yuchen walked forward in silence, and Su Yuxi gradually became panicked. Did he say something too much?

Does he hate himself in his heart?

Thinking about this, Su Yuxi looked at Su Yuchen nervously and whispered, "Brother, I..."

As soon as she started to speak, Su Yuchen turned his head and looked at her: "Sometimes I also wonder, if we were not brother and sister..."

Su Yuxi opened her eyes wide and looked at Su Yuchen, her little heart pounding. Didn't her brother's words mean that he had also thought about what she had always thought about?

She felt that these words were the most beautiful words she had ever heard!

Fortunately, I had the recording function turned on when I was talking to my brother, so that sentence was saved!

Play on loop!

"Brother, I..." Su Yuxi couldn't stop smiling under the mask. She was considering her tone and was about to speak when she saw Su Yuchen stop where he was and no longer move forward.

"What's wrong? Is there anything you want to eat?" Su Yuxi quickly looked around, trying to find out what smell attracted her brother.

Su Yuchen looked at Su Yuxi, feeling somewhat complicated and relieved at the same time.

the seventh!

I stopped because I was far enough away from Raorao.

but……

No 'unfortunate' happened!

……

Chapter 502: Sister is not a sister, sister is not a person

There is no doubt that Yu Xi likes herself.

If my guess is correct, I should have the same feeling, starting with curiosity and then decreasing the frequency of "misfortune" as my favorability increases.

And now the New Year has passed, she is eighteen years old and an adult.

Then, after Raorao has distanced herself from others, the change in her heart would be able to verify whether she is the seventh one.

Su Yuchen didn't know to what extent his inner transformation would reach, but he felt that the words "if they were not brother and sister" were enough.

Facts have proved that it is true.

With Yu Xi by my side, nothing unfortunate happened.

Because it was expected, Su Yuchen didn't feel too much in his heart at this moment, he just felt a sense of relief.

Fortunately, it wasn't a strange woman I didn't know...

The strategy is too difficult.

I didn't expect that Yu Xi, whom I 'picked up' when she was still in her infancy, would become a child bride...

"Brother, which one do you want to eat? Tell me and I'll buy it for you."

After searching for a long time and not knowing what her brother wanted to eat, Su Yuxi turned around and looked at Su Yuchen: "Brother, what are you thinking about?"

"Nothing." Su Yuchen patted his sister's head: "We'll talk about it later."

Su Yuxi blinked, then said shyly: "Brother, you just said 'if we are not brother and sister', right?"

"What's wrong?" Su Yuchen looked at Su Yuxi with a smile.

"Actually, I think..." Su Yuxi could clearly feel her heart pounding when she spoke. She was very timid, but did not want to miss this opportunity.

After all, this is the first time in all these years that my brother has said such beautiful words!

She wanted the other person to know some of her thoughts.

"As long as there is love, even if..." Su Yuxi opened her mouth softly with a twinkling look in her eyes, but as soon as she opened her mouth, Su Yuchen raised his index finger and made a gesture of silence.

Then he looked at her with a smile.

Su Yuxi suddenly opened her eyes wide and felt her heartbeat quicken again. The blood in her body was flowing rapidly, making her feel dizzy.

He didn't refute or change the subject, he just looked at her with a smile.

That is to say...

Su Yuxi only felt a dry mouth and hot whole body, especially his brain, which was completely occupied by Su Yuchen's attitude at the moment and could not accommodate any extra thoughts.

"I..." As soon as Su Yuxi opened her mouth, she felt dizzy and her body fell backwards involuntarily.

Su Yuchen quickly hugged her, looked at the mist rising in her black pupils, and then... her head tilted and she fainted.

Su Yuchen carried her on his back and watched the crowd passing by him. He did not notify Raorao to come back. Some time passed, but still no "unfortunate" thing happened to him.

It is absolutely certain.

Feeling the not-so-heavy weight of his sister on his back, Su Yuchen turned around and took a step forward. There was no doubt that his sister was his 'brain'.

Although she had been weak and sickly since childhood, she was very smart. Now that it was confirmed that she could resolve her own "misfortune", everything made sense.

But...why not a senior who is older than me?

Do you feel that six seniors are too many, so you want to change your taste?

and many more!

Is Yuxi...a human?

Yu Shuang and the others are not human, and the chance that Yu Xi is not human is also very high.

Although she was still a baby when she was 'picked up', who knows what she was before she became a baby?

Just like Sister Yu Shuang, she was also a little girl when I first met her, but her apparent age was definitely not that of a sophomore.

Su Yuchen lifted up Yu Xi and his brain raced. If his speculations so far were correct, then if Yu Xi was not a human, then she...

Su Yuchen recalled the scenes of sneaking to the Sky City on his sister's birthday.

Everything was normal at first, until she entered Sky University behind his back.

The locations of the nine main systems of the 'Sky' intelligent system are top secret. How did Yu Xi know that the No. 3 main system of 'Sky' is in the basement of the Sky University Library?

Moreover, there are so many codes and mechanisms there. With her strength, how did she manage to get there safely?

Raorao also told me later that when she rushed over, Yuxi almost fainted in front of the "Sky" No. 3 main system.

Although she was frail and sickly, the sister that Raorao described at the time was extremely weak and dizzy, which was different from the impression she had of her previous weakness.

Then, after returning from the Sky City, she wasn't as weak as before... How could it be such a coincidence?

As he was thinking, Su Yuchen paused.

He recalled the inexplicable text messages and voices on most of the cell phones and school radios on the day his sister arrived in the Sky City.

Then, he recalled the chat with Sky on Christmas Eve and the apple given to him by the sweeping robot.

'The sky with its own thinking is not controlled by anyone. It is not only confined to the Internet, but also wants to move from virtual to reality.'

'So, there was Yu Xi.'

'So, the No. 3 main system took the initiative to talk to me and controlled the sweeping robot to send me apples.'

'So, the Sky 3 main system wanted itself, not others, to help find the locations of the other eight main systems.'

'That makes sense.'

Su Yuchen turned his head to glance at the profile of his still sleeping sister, then turned back and let out a breath.

"No wonder Ling Yan didn't use 'Sky' to handle a lot of things near the end of the semester. It turns out that she noticed the changes in 'Sky' and did it herself."

Su Yuchen took another step and smiled silently. Although the results in his mind were all speculations, it was a very simple matter to confirm them.

If you try to trick your sister casually, she will definitely be exposed.

"Not a human..." Su Yuchen muttered. He never expected that he would actually have a cyber love affair.

But if my speculation is correct, why doesn't Yu Xi know that he has no blood relationship with her?

Based on his understanding of his sister, she could do something like blood relationship testing, but how could she test blood relationship if there was clearly no blood relationship?

Su Yuchen was sure that his sister did not have the blood of the Su family or the Zhou family, otherwise he would have known who her biological parents were over the years.

Then it is very likely that the 'Sky' intelligent system is hindering it... Based on data collection and judgment, it believes that revealing that the sister is not a biological child is disadvantageous to it?

Thinking of this, Su Yuchen narrowed his eyes. Is the obstruction of the "Sky" intelligent system a kind of "misfortune" for him?

If my sister had known the truth earlier...

"If this speculation is true, then the 'misfortune' I experienced when I first met Cristia and the others in the Sky Castle was caused by them."

A series of accidents after meeting Yu Shuang again, Cristiana wanted to suck blood, was almost hit by Sister Yue's motorcycle, was almost hit by Xiyu's box when recruiting new members, the bookshelf fell down in the library, and was targeted by the sweeping robot when meeting Mu Lingyan at school...

"I don't want to have any contact with them..."

“It all makes sense again.”

Su Yuchen sighed inwardly, but a smile involuntarily appeared on the corner of his mouth.

At this moment, he felt a refreshing feeling as if the fog had been cleared.

The 'unfortunate mystery' surrounding him had been completely solved by him.

Now he is more certain of his previous guess: at first, they didn't want him to meet them, but later the will of the world changed its strategy and tried to let him be strangled by them in the Shura Field.

Unfortunately, his almost flawless, step-by-step strategy was better!

Just thinking about it, Su Yuchen felt relaxed all over.

"All that's left is to confess to Sister Yu Shuang tomorrow."

Su Yuchen chuckled and stopped, supported Yuxi's thigh with his arm, then took out his cell phone and sent a message to Raorao.

In a few seconds, Raorao appeared in front of him.

"Space magic is really useful." Su Yuchen looked at Rao Rao with a smile: "Where did you go just now?"

Raorao glanced at Yuxi who was sleeping on her master's back and said softly, "Raorao will listen to her master and stay very far away from her master, meow~"

"So good." Su Yuchen handed his cell phone to Raorao.

Rao Rao took the phone and looked at Su Yuxi on his back, then walked to his side and asked in a low voice: "Are you sure?"

"Yeah." Su Yuchen looked at Raorao, asked her to put her ear close to him, and whispered, "Yuxi can also resolve my 'misfortune'."

Raorao's peach blossom eyes suddenly widened: "Really?"

"Have you seen any accidents around?" Su Yuchen joked.

"Oh~" Raorao subconsciously looked around and there was indeed no accident of any plaque falling or street lamp exploding.

"That's great." Raorao looked at Su Yuchen with curved eyebrows and eyes: "Yuxi will definitely be very happy."

"But I can't tell her now." Su Yuchen smiled slightly: "It's not the right time yet."

Raorao nodded in agreement: "Because there is also Aunt Jinyi to consider, and it may also affect the situation in Chang'an and even the entire Xuanqing Empire. Isn't what Raorao said right?"