The fragrance wasn't as potent as a spiritual elixir, but lingering near it, the scent was quite profound. Regardless, Dragon-Guiding Grass was still a plant imbued with a certain spiritual energy, and paired with the precious medicinal herbs Zhang Yang used, this aroma was certainly distinctive. Once the medicinal scent bloomed, it attracted not only the sisters Ren Lijuan and her sibling, but also the groom and Xiao He from nearby. The two approached together to look, and others in the vicinity who caught the scent also turned their gaze toward the source.

“What is this for?” The bride finally lifted her head, asking softly. Although it was vastly different from what she had guessed, she sensed this was something extraordinary, though she had no idea of its precise function. Ren Lijuan was also watching Zhang Yang, her curiosity mirroring the bride's. Zhang Yang offered a faint smile and murmured, “I will tell you the answer after your wedding tomorrow. For now, let's keep it a secret. I trust you will absolutely love this!” Both women’s mouths dropped open in astonishment; they hadn't expected Zhang Yang to be so coy. However, this time they had truly misjudged him. Zhang Yang wasn't deliberately withholding information; it was because there were too many people present, and he couldn't reveal the true purpose of the 'Youth-Retaining Pill.' With so many young women around, if the secret got out, they would instantly transform into hungry wolves. This item held far too much allure for young women; which one wouldn't crave eternal youth? Even as a late-stage expert of the Third Tier, he couldn't handle that many people now. Keeping silent was clearly the wise choice. Once their wedding was over tomorrow and he had departed, a simple phone call would suffice to inform her—it served as a surprise for their wedding day. Seeing Zhang Yang remain silent, Ren Lijuan’s cousin appeared somewhat resigned, eventually nodding her assent. After all, this was her cousin’s classmate, and since she wasn't intimately acquainted with him, she felt it inappropriate to press further. She closed the box, and the elegant, subtle fragrance slowly faded. A feeling of reluctance washed over her, wishing she could savor the scent a while longer. Alas, they had to proceed with toasts, and this wasn't the time for quiet contemplation of herbal scents. There would be time to savor it again in their room after the banquet concluded.

“Thank you for your gift. We will certainly attend the wedding tomorrow. Having met, we are friends!” The groom’s mouth was slightly looser from drinking. After saying goodbye to the people at their table, he specifically greeted Zhang Yang before leading his bride to the other tables. These were all their classmates; he couldn't slight anyone, needing to attend to every table. Zhang Yang observed him and guessed that by the time the groom finished making his rounds, the man would likely collapse. As he was thinking this, the groom suddenly swayed, lost his footing, and pitched to the ground. The bride immediately rushed to steady him. Since they hadn't gone far, Ren Lijuan and Xiao He also moved over, helping the groom stand up with a few others. The groom’s eyes remained shut. As he was being lifted, Zhang Yang caught sight of his face. After just one glance, Zhang Yang’s brows immediately knitted together in concern. The groom’s complexion was somewhat flushed, his lips appeared dry, and he seemed to be breathing with a slight wheeze. This was completely different from how he appeared while drinking moments before.

“I told you not to drink so much; you insisted. Be smarter later and stop drinking!” The bride whispered these words near the ear of the groom she was supporting. Her voice was so low that only Zhang Yang’s superhuman hearing could catch it; even Long Feng, whose heart cultivation had reached an advanced level, hadn't heard clearly. “Why aren’t you speaking? What’s wrong with you?” The bride spoke a few sentences, but seeing no reaction from the groom, she asked anxiously, patting his face hard. The groom was now clenching his jaw, his breathing tight, and his face growing redder, the skin becoming even drier. The bride finally sensed that something was amiss. She panicked, unsure what to say, and even Xiao He and Ren Lijuan noticed the groom’s distress. “Let me take a look!” Just as they were at a loss, Zhang Yang suddenly stepped forward. Hearing his voice, both women instinctively made a little space. Zhang Yang leaned down to observe the groom's expression, then placed his hand on the man’s pulse point. Based on his appearance, the groom looked poisoned. Many of his symptoms suggested acute toxicity, and if it were a true poisoning, a fast-acting toxin was no small matter. After checking the pulse for a moment, Zhang Yang’s frown eased slightly, though it didn't disappear entirely.

“Zhang Yang, what exactly is wrong with my brother-in-law?” Ren Lijuan asked nervously. Her cousin and cousin-in-law had met in university, fallen in love freely, and now that their romance was poised to blossom, no one wanted any mishaps. The groom's breathing grew more rapid now; he was visibly gasping for air, as if struggling to draw breath. “He has been poisoned!” Zhang Yang stated quietly, then reached into his canvas bag and withdrew a small pill. Zhang Yang's initial guess was correct; the groom was indeed poisoned. He had ingested the toxin of Datura stramonium (Yang Jinhua). This poison acts quickly, usually manifesting within half an hour to an hour, and an overdose requires immediate gastric lavage, or there is a risk to life. The amount the groom ingested wasn't small, but it hadn't reached a fatal level. With Zhang Yang present, his safety was assured. Zhang Yang placed an antidote pill into the groom’s mouth and instructed Ren Lijuan to help him swallow it. He then retrieved his needle case from the canvas bag. Without Zhang Yang, the groom would certainly have needed a gastric lavage, but his presence allowed him to bypass that agony. Zhang Yang possessed his own detoxification method, one that yielded even better results. This case differed from the last time the child was poisoned; that child had consumed too many pills, leaving much residue in the stomach that needed to be flushed out.

“Poisoned? What kind of poison? We only ate food from the hotel today; we didn’t consume anything else!” The bride’s eyes widened. They were hosting their classmates in a five-star hotel today; everything they ate and drank was provided by the venue. If poisoning occurred here, only the groom shouldn’t be affected. Zhang Yang’s brow twitched. He hadn't considered that detail earlier; the bride’s point was valid. He glanced around. No one else showed signs of poisoning, which somewhat reassured him. It was possible others hadn't ingested the toxin, making the groom uniquely unlucky, or perhaps others had consumed a smaller dose, insufficient to trigger symptoms. Regardless of the circumstance, Zhang Yang’s immediate priority was detoxifying the groom.

“Zhang Yang, what poison has my brother-in-law taken?” Ren Lijuan inquired again, and the bride immediately turned her gaze back to Zhang Yang, voicing the question she had intended to ask. Poison—it needed a name. “He has been poisoned by Yang Jinhua!” Zhang Yang stated calmly, looked up at everyone briefly, and continued, “Yang Jinhua is also known as Datura flower. The fruit, stem, and blossoms of this plant are all toxic. Excessive consumption leads to toxic reactions!” “Datura flower?” Ren Lijuan exclaimed in surprise. A crowd had already gathered around them—guests attending the wedding celebration. The groom collapsing naturally drew everyone’s attention. Upon hearing Zhang Yang’s explanation, everyone present showed surprise. The name Datura flower wasn't entirely unfamiliar; the recent hit drama Demi-Gods and Semi-Devils had made it known to many. As he spoke, Zhang Yang had already inserted a needle. He flicked the needle lightly, causing it to immediately channel his internal energy to circulate within the groom’s body. Zhang Yang’s primary goal was to guide the toxins out of the bloodstream; his detoxification pill had already protected the groom’s vital organs. Watching the silver needle hum and vibrate incessantly, many people’s mouths hung open. Zhang Yang held the needle and inserted another one into the groom’s body. He stopped after inserting more than a dozen needles. The tails of all the needles continued to tremble, sparking further discussion among the onlookers. Needles that could vibrate autonomously on the body for that long was something they had never witnessed.

“I remember now; Zhang Yang studied medicine, but I thought it was clinical medicine. How did he switch to Traditional Chinese Medicine acupuncture?” Xiao He suddenly remarked, sounding somewhat confused himself. Xiao He had an excellent memory and remembered the university and majors of many classmates. Zhang Yang was the class monitor, so he remembered him even more clearly. At the time, he had felt sorry for Zhang Yang. Although Zhang Yang's scores weren't as high as his, he should have gotten into a good university in the capital. Anything would have been better than studying medicine at Changjing University, which was only famous within its own province and quite mediocre nationally. However, it was Zhang Yang’s choice, and Xiao He hadn't said anything back then. “Ugh!” Just as Zhang Yang finished inserting the needles, a male student nearby suddenly gagged and began to vomit violently, before his entire body collapsed onto the floor. His complexion was as red as the groom’s, and his breathing was also becoming tight. Seeing this, Zhang Yang’s brow twitched again. The bride had been right: this poisoning wasn't isolated to one person. Besides the groom, there were others affected. This highly suggested a mass poisoning event. There were over two hundred people present. Even if only a tenth experienced toxic reactions, that would be over twenty individuals. The Yang Jinhua poison acted extremely rapidly, and severe cases could lead to fatal outcomes if not treated immediately. “Call an ambulance!” Zhang Yang commanded directly, then strode toward the collapsed male student, placing his finger directly on the man’s pulse point. This young man, too, was confirmed to have Datura poisoning; his condition was no better than the groom’s. Zhang Yang pulled out another antidote pill for him to ingest first, then took out a silver needle to prick his body. This time, Zhang Yang did not use the needle-flicking technique. He didn't know if more people would exhibit symptoms, and he only had one set of needles; he needed to conserve them for now. Ren Lijuan was already leading her distraught cousin to make the call. Hearing that two people were poisoned, many others began to realize the gravity of the situation. Soon, within a minute, another man and woman showed signs of toxic reaction. Zhang Yang could now confirm this was a group poisoning incident. The source was still unknown, but it was certainly linked to the hotel. “Xiao He, get the hotel manager here! The onset of symptoms is too fast; we can’t wait for the ambulance. We must arrange transport immediately to get everyone to the hospital. I suspect everyone here might be poisoned!” Zhang Yang called out to Xiao He. Xiao He blinked in surprise, then nodded and quickly ran out. If everyone was poisoned, that included him, giving him extra impetus to run fast.