Traveling through time to cultivate immortality: a life and death test

Liu Xing was currently sitting at a large desk on the second floor, diligently studying a book on forbidden techniques. This was a completely new arrangement technique, one Liu Xing had never seen before, so he was thrilled. He was diligently calculating and scribbling on paper, the strings of characters and formulas making anyone's scalp tingle. Yet, Liu Xing wrote faster and faster, mumbling to himself, and sometimes even sporting a strange smile.

A woman sitting across from him stared at him curiously. She had noticed him for days. She had never seen anyone so obsessed with reading, nor had she seen anyone read so quickly. She was also at the early stages of Foundation Establishment. She wore a loose green dress, but it barely concealed her graceful figure. Her face was ordinary, perhaps disguised. She was in her twenties, brimming with youthful energy. She had come to the bookstore to research the knowledge of prohibitions, but the calculations involved were enormous. Although she was naturally talented, there were still many things she didn't understand.

Liu Xing didn't disguise himself this time when he came to the bookstore. It was relatively safe here, and there weren't many people around, so he didn't bother. He was tall and handsome, with sharp eyebrows and eyes, and a sharp face. He was well-read and had a scholarly air about him that made people feel good and close to him.

Liu Xing had finally deduced the restriction, finding both its imposition and removal within easy reach. He happily put away his book and prepared to switch. He looked up, only to see the woman across from him, her large, dark eyes gazing curiously at him. Even though she'd been caught peeping, she showed no fear. Instead, she smiled. Though her face was ordinary, this smile was captivating and unforgettable.

"My name is Nie Xiaoqian, may I ask your name, sir?" The woman in green skirt bowed gracefully and took the initiative to greet him.

"My name is Liu Xing, nice to meet you, Miss Nie." Liu Xing replied. He also had a good impression of the woman opposite him.

"Mr. Liu's reading efficiency and strong learning ability are unprecedented in my life. I really admire him."

"Miss Nie, you are too kind. There are countless strange people and things in the world. I just took a quick look without understanding them deeply, so I can't count them." Liu Xing answered modestly.

"Mr. Liu, I have some questions about restrictions and would like to ask you for advice. Is that convenient?" Nie Xiaoqian took the initiative to communicate and finally stated her purpose.

Liu Xing hesitated slightly. He was engrossed in his reading, and he still had a lot of books to finish. His schedule was extremely tight, so how could he spare the time for teaching others? But seeing Nie Xiaoqian's pleading eyes, he felt a pang of reluctance, and his inherent warmth naturally emerged. He thought back to his past life. Starting in middle school, his mathematical talent was fully demonstrated. He always scored full marks on exams, and the girls in his class would gather around him to ask him questions. He always answered questions succinctly and clearly, making him a idol in their hearts.

"Okay, but I can only give you one day. I still have a lot of books to read." Liu Xing finally agreed.

"Thank you, Mr. Liu. One day is enough." Nie Xiaoqian agreed happily, expressing her gratitude from the bottom of her heart.

Nie Xiaoqian then ran across the table and sat next to Liu Xing, casting a soundproofing shield to avoid disturbing others during their conversation. Liu Xing inhaled the woman's delicate fragrance and gave her a friendly smile. The two then began to chat quietly.

Nie Xiaoqian had clearly been studying the art of prohibitions for a long time, possessing many insights and creative ideas. Liu Xing couldn't help but praise her talent and regarded her as a promising talent. However, her fundamental theoretical knowledge wasn't solid enough, hindering her ability to apply it to her current situation. Consequently, when faced with difficult prohibition problems, she couldn't come up with solutions. Liu Xing bluntly addressed this issue and helped her create a study plan, including a list of required reading. Looking at the long list, Nie Xiaoqian's face turned bitter. Reading so many books was truly exhausting.

"Do you need to read so many books?" Nie Xiaoqian asked unconfidently.

"Of course, the theoretical basis is very important and determines the superstructure. If you want to make more contributions and achieve higher achievements in the way of prohibition, you must take this step." Liu Xing said solemnly.

"Actually, I just want to ask you for advice on how to deduce and break these restrictions." Nie Xiaoqian muttered in a low voice, feeling timid like a student who is afraid of the teacher.

"What's the use of me teaching you how to solve these two problems? If you encounter other problems in the future, even if you make a slight change to this problem, you still won't be able to solve them. It is better to teach a man to fish than to give him a fish. The way I teach you to grow will only help you achieve greater success in the future. You have good talent, so work hard, Miss Xiaoqian." Liu Xing taught earnestly with an extremely sincere attitude.

"Thank you for your teachings, Mr. Liu. I am very grateful." Nie Xiaoqian understood Liu Xing's good intentions and expressed her gratitude from the bottom of her heart.

Liu Xing smiled knowingly, nodded to Nie Xiaoqian, and then turned around to find another book to read. Nie Xiaoqian looked at his back with stars in her eyes, and unconsciously set up a role model for her to learn from.

A month passed quickly, and Liu Xing finished reading all the books on the second floor. His gains were immense. Building on his existing knowledge, he had reached a new level, and would be more confident in facing various situations in the future. Next, he headed to the third floor.

The third floor contained only a small room, where dozens of jade slips floated in the air, each shrouded in a thick barrier. Liu Xing silently sensed the barrier's defensive power and was surprised to find that even with his full-strength attack, it would still take considerable time to break through. By that time, he would have been surrounded by the masters of the Sutra Library.

He examined each jade slip one by one. Most of them were techniques suitable for cultivation in the Foundation Establishment stage, which were useless to Liu Xing. The only thing that caught his attention were two pill recipes and a book titled "Mechanical Puppetry." One of the recipes was called the Soul-Enriching Pill, which was suitable for Foundation Establishment cultivators to increase their mana and was extremely valuable. Another recipe was called the Beauty-Fixing Pill, which could freeze one's appearance at the moment of taking the pill, which would definitely be very attractive to young women. However, Liu Xing felt that the Beauty-Fixing Pill was a bit useless and did not help with mana. "Mechanical Puppetry" was of great interest to him. He had seen other books that introduced puppetry and had some theoretical basis. Copying these three jade slips cost him over 500 spirit stones. However, Liu Xing was willing to pay for knowledge. As long as he could learn something useful, the cost was not a big deal. From then on, all his tasks in the Sutra Library were completed.