A scream pierced the sky.

Lanxi quickly retreated into the pavilion, her face contorted in pain, her complexion even paler than before, and a dense rash gradually appearing on her body.

"Xi'er, are you alright?"

The group quickly helped her to the side, looking at her with concern.

"No problem..."

I've lost count of how many times this has happened; I've gotten used to the pain.

At this moment, Ji Jiuying's figure also appeared in the pavilion. Lan Xi looked at the breathtakingly beautiful girl in front of her and smiled: "How did you discover that array eye?"

"No rush, please sit down first."

As they were talking, Ji Jiuying sat down opposite Lanxi, took her hand, and gently placed her long, slender fingers on her wrist.

Lan Xi's cool and melancholic eyes fell on those hands, then she looked up at her serious expression and chuckled softly.

There have been at least eight hundred or a thousand pharmacists who have come to see her, but none of them know what disease she has, and she has long since given up all hope.

For these people, it's just a formality.

If she guessed correctly, her cousin would react the same way as usual. She would first sigh, then shake her head, and then say something.

She is physically fine; it's just that I lack the knowledge to diagnose her illness...

The group watched Ji Jiuying silently, without saying a word.

Just then, Ji Jiuying let go of her hand. Lan Xi didn't show any disappointment on her face; instead, she looked at her with curiosity.

"Now can you tell me how to find the core of the formation?"

This made Lan Zhao and the others very anxious.

"Xi'er, we can talk about formations later."

Lan Zhao looked at Ji Jiuying and asked, "Cousin, have you figured anything out?"

Apart from Lan Xi, the others looked at Ji Jiuying with expectant expressions. Ji Jiuying chuckled and said, "It's not certain yet, so please don't be in a hurry."

As she spoke, a syringe appeared in Ji Jiuying's hand. The others stared blankly at the thing in her hand, even Lan Xi was curious, but she still looked like she was letting them do whatever they wanted.

What is this?

Lanxi asked, wanting her to finish quickly so she could tell her how she figured out the key to her formation.

Ji Jiuying took her hand again and used a piece of tape to bind it.

"Bear with it, I'm going to draw some blood."

Ji Jiuying glanced at her and said.

"bring it on."

It turned out to be for drawing blood. Lanxi watched quietly, resting her chin on her hand.

Ji Jiuying moved with fluid grace, inserting needles and drawing blood.

After obtaining the blood, Ji Jiuying said, "Can I borrow your room for a bit?"

Without waiting for her agreement, he walked out of Lanxi's room, slammed the door shut, and slipped into his spatial dimension.

"·····"

The group was left standing there dumbfounded.

"Second brother, she's quite interesting."

"Zhao'er, do you think she can really cure Xi'er?" Lan Mingyang asked nervously.

Just as Lan Zhao was about to speak, Lan Xi added, "Grandpa, it doesn't matter if it can't be cured. I've gotten used to it all these years anyway."

Hearing her words, the others looked at her with pity, and Lan Zhao said, "Others may not be able to, but she definitely can."

Lan Xi looked at Lan Zhao with some surprise. She hadn't expected her second brother to have such a high opinion of her. For a moment, she also began to look forward to it.

At this moment, Ji Jiuying, inside the space, sat to the side examining the Heavenly Punishment Manual.

She had just used her spiritual power to examine Lanxi, and her body was indeed no different from that of an ordinary person. From her blood, she knew that Lanxi was simply allergic to ultraviolet rays, which caused her skin to become red and swollen, but her first reaction would definitely not be pain.

Lanxi's first reaction was pain, which puzzled her greatly.

"Little evil fire, what exactly is it that hurts when it touches the sunlight?"

The evil fire floated in mid-air, pondered for a moment, and then shook its head: "I don't know."

"Didn't you say you knew everything? Were you lying to me?"

"When have I ever lied to you! I just... just haven't remembered yet."

"·····"

After searching for a long time without finding the answer she wanted, I decided to just prescribe some medicine to treat her UV allergy!

The room door opened, and the group looked at Ji Jiuying.

Ji Jiuying placed a bottle of pills and a bottle of vitamin D she had taken from her spatial storage on the table.

"Take one pill a day, and one of this bottle of medicine in the morning and one at night, until it's all gone."

Hearing her words, the group was overjoyed.

"Cousin, after taking all this medicine, won't Xi'er be afraid of the sun?"

However, Ji Jiuying's next words were like a bucket of cold water being poured over her head.

"Afraid."

Disappointment immediately appeared on the faces of the others, but Lan Xi chuckled lightly, "It's nothing, I'm used to it..."

Although she appeared indifferent, Ji Jiuying could see a hint of loneliness in her eyes.

"And these pills..."

Lan Mingyang sighed softly and asked in confusion.

"These medicines are for treating Lanxi's rash. After taking these medicines, she won't get a rash even when exposed to the sun."

Everyone was even more confused. Didn't this mean he was cured? Why was he still afraid of the sun?

Seeing their confusion, Ji Jiuying explained, "Actually, Lanxi has two kinds of illnesses. The first is that she gets red rashes when she's exposed to the sun. This is called an allergy to ultraviolet rays, but it doesn't hurt. As for why it hurts, I don't know yet."

Lan Xi's eyes flickered slightly as she recalled how every time she encountered sunlight, her first reaction was pain, a piercing pain, followed by a rash soon after.

Looking at the pills on the table, Lanxi took one and ate it. After a while, the red rash on her body slowly disappeared.

This scene made the group believe Ji Jiuying's words even more.

"Girl, thank you."

Lan Mingyang sighed softly, and Lan Xi smiled and said, "Grandpa, don't sigh. At least I'm getting better now, aren't I?"

Thinking about it that way, that makes sense. After all, over the years, none of the people who came to help Xi'er with her diagnosis gave the same answer, while Ji Jiuying was able to diagnose things that they couldn't.

"Okay, can you tell me the answer now?"

Lan Xi looked at Ji Jiuying, eager to know where the flaw in the formation was.

"It's actually very simple. You just added a mirror image to the formation, didn't you?"

Ji Jiuying sat down and explained seriously, "Your illusion array uses the Bagua array. Usually, the Bagua array uses Qian as the life gate and Kun as the death gate. But you just happened to add a mirror image in the array, which changed the position of the two gates. I didn't notice it at first, until that gust of wind blew in."

Lan Xi's eyes lit up, and she looked at Ji Jiuying as if she had seen a treasure. So that's how it is!

Ji Jiuying continued, "However, the most impressive thing is the design of the array's core. From the moment I entered the array, I became the core. Most people wouldn't think of that, and if they didn't, they would be trapped in the array forever."

"Your title as a genius in formations is truly well-deserved!"