Pei Jinxiao's face turned serious when he heard this. He thought for a moment and said, "Brother Bo, this matter is very serious. But before that, we need to confirm whether this poison really exists."

Tu Subo nodded and said, "That's right. I have brought the ancient book back to the study. Let's look it over together and see if we can find a way to detoxify it."

The two returned to the study together, and Tu Subo took the ancient book from the bookshelf. The cover of the book had turned yellow, showing that it was very old. They flipped through the pages, their expressions becoming more and more solemn.

"Brother Bo, look at this text." Pei Jinxiao pointed to a page and said, "The poison described here is colorless and tasteless. The poisoned person will lose consciousness in a short period of time and then slowly die. Moreover, the method of making this poison is very complicated and requires a variety of rare medicinal materials."

Tu Subo sighed: "It seems that this poison does exist. The problem now is how can we find a way to detoxify it in a short time."

Pei Jinxiao pondered for a moment and said, "Brother Bo, I have a plan that may be able to cure this poison."

A glimmer of hope flashed in Tu Subo's eyes: "Oh? What do you think, Brother Pei?"

Pei Jinxiao said: "Since this poison is so mysterious, we might as well start from the source. Ancient books mentioned that the method of making this poison requires a medicinal material called 'Hydrangea'. We only need to find this medicinal material, and we may be able to find a way to detoxify it."

Tu Subo clapped his hands and exclaimed: "What a good idea! Where do hydrangeas grow?"

Pei Jinxiao said: "According to ancient records, hydrangeas grow in deep mountains and old forests and are very rare. We need to leave as soon as possible, otherwise we may miss the best opportunity."

After the two men had discussed it, they packed their bags and prepared to leave. Before leaving, Tu Subo said to Pei Jinxiao: "We must keep this operation confidential. Don't let anyone know what's going on in the mansion."

Pei Jinxiao nodded and said, "Brother Bo, don't worry, I will act carefully."

As the night deepened, the two set out on a journey to find hydrangeas. They passed through dense forests, crossed mountains, and after going through untold hardships, they finally found hydrangeas in a secluded valley.

Tu Subo looked at the hydrangea in his hand, and a trace of joy flashed in his eyes. He carefully put the hydrangea into his bag and returned to Tu Su Mansion with Pei Jinxiao.

At this time, someone in Tu Su's house was suddenly poisoned and in critical condition. Tu Subo and Pei Jinxiao took out the detoxification pill without hesitation and saved the man's life.

Tu Subo looked at Pei Jinxiao and said with emotion: "If it weren't for Brother Pei's help this time, I'm afraid I wouldn't be able to detoxify so smoothly. The friendship between the two of us has become even deeper."

Pei Jinxiao smiled and patted Tu Subo on the shoulder: "Brother Bo, you are too kind. We are close friends and it is only natural for us to help each other."

In the wing room of Prince Jing's mansion, the flickering candlelight reflected on Sheng Yunrong's pale face, making her look even weaker. Pei Jinxiao carefully bandaged her wound, with a hint of concern in his eyes.

Sheng Yunrong endured the pain and tried to relax her body. She looked at Pei Jinxiao's profile and felt a warm feeling in her heart. She said softly, "Thank you, Brother Pei. If you hadn't arrived in time, I'm afraid..."

Pei Jinxiao smiled slightly and comforted her softly, "Don't worry, I'm here, you'll be fine. How can the eldest lady of the Sheng Mansion fall down so easily?"

Sheng Yunrong's lips curled up slightly, revealing a grateful smile: "Brother Pei, you are always so good at talking, which makes people feel warm in their hearts."

Pei Jinxiao put down the bandage in his hand, patted her shoulder gently, and said with a smile: "Miss Sheng, how about we chat and distract ourselves?"

Sheng Yunrong nodded, a hint of anticipation flashing in her eyes.

Pei Jinxiao said: "I remember when we were little, we played hide-and-seek in the garden of Sheng Mansion. At that time, you were like a lively little rabbit, making people want to protect you."

Sheng Yunrong's eyes flashed with nostalgia, and she smiled and said, "Yes, back then we were all carefree and only wanted to play."

Pei Jinxiao sighed and said, "Time flies. In the blink of an eye, we have all grown up and shouldered our own responsibilities. The eldest lady of the Sheng Mansion is no longer the innocent little girl, and I have become the Prince of Jing."

Sheng Yunrong's eyes revealed a firm look, and she said, "I know that Brother Pei shoulders the honor of the family and the responsibility of Western Wei. You will definitely become an outstanding prince."

Pei Jinxiao smiled and said, "Thank you for the compliment, Miss Sheng. So, Miss Sheng, what about you? What are your plans?"

Sheng Yunrong's eyes flashed with confusion, but she quickly adjusted herself and said, "I hope to bring honor to the Sheng Mansion and contribute to the Western Wei. Although I am a woman, I believe that as long as I work hard, I will be able to make a difference."

Pei Jinxiao nodded appreciatively and said, "Miss Sheng, I admire your ambition. I believe you can achieve your goal."

The two smiled at each other, as if they were back in their childhood. At this moment, the door was gently pushed open, and a maid came in and brought them a pot of hot tea.

Sheng Yunrong said: "Brother Pei, let's talk about each other's recent situation. I want to know what you have been through over the years."

Pei Jinxiao picked up the teacup, blew on it gently, and said, "Over the years, I have been training at the border and experienced countless life and death tests. But fortunately, I did not let my family and Western Wei down after all."

Sheng Yunrong's eyes revealed a trace of worry, and she said, "Brother Pei, you must be careful. We are all worried about you."

Pei Jinxiao smiled and said, "Don't worry, I'll be fine. With you cheering me on in Sheng Mansion, I'm more confident."

Sheng Yunrong lowered her head shyly, with a blush on her face. Pei Jinxiao noticed her strangeness, and deliberately changed the subject: "By the way, Miss Sheng, do you have any new things recently?"

Sheng Yunrong raised her head and smiled, "I have been researching a new weaving technique recently, hoping to make a contribution to the textile industry in Western Wei."

Pei Jinxiao's eyes flashed with admiration, and he said, "Miss Sheng, you are really talented. I believe that your research will be successful."

The two of them drank tea and chatted, as if they had returned to their childhood. Before they knew it, it was already late at night. Pei Jinxiao stood up and said, "Miss Sheng, you should go to bed early. I have to go back too."

Sheng Yunrong nodded slightly, with a hint of reluctance in her eyes. Pei Jinxiao tidied up the corner of the quilt for her, then turned and left.

Sheng Yunrong looked at Pei Jinxiao's back and felt a warm feeling in her heart.

The warm yellow candlelight reflected on the exquisite rosewood furniture, and the room was quiet. Pei Jinxiao bandaged Sheng Yunrong's wound gently, his eyes were focused and gentle, as if he was treating a precious piece of porcelain. Sheng Yunrong sat there, feeling his warmth.

"Okay, don't move, or the wound will open."

Sheng Yunrong nodded slightly, with gratitude in her eyes. Pei Jinxiao looked at her, and a strange emotion surged in his heart, but he quickly concealed it and turned to get the ointment.