Although the recruitment of the Pinglan Star Academy had already ended, Lan Zhi and several other cultivators who had come from outside for medical consultations hadn't left yet. Rong Keyun often stayed in the outer hall, and when disciples of the Pinglan Star Academy had emergencies, they could only come to the outer hall to find her. As a result, Lan Zhi often heard the screams of pain coming one after another from outside. She even heard Rong Keyun using her as an example: "Did you see that little girl? She didn't make a sound even when her soul was being sewn up for three hours. How can you have the nerve to howl like that?" Lan Zhi: "..." Of course, Rong Keyun could firmly hold the top position in the Medical Cultivation Pavilion, and her abilities were truly outstanding. No matter whether the disciples who came in were missing an arm, had broken tendons, or were poisoned or affected by Gu insects, they could basically go out and fight another three hundred rounds in less than half a day. After observing for a few days, Lan Zhi thought it was about time. When Rong Keyun came to examine her again, she took the initiative to say, "I've thought about it and still hope to completely heal my soul injury." Rong Keyun was used to speaking straightforwardly. During this period of time, she had also become quite familiar with Lan Zhi, so she spoke rather casually. Hearing this, she asked, "It's definitely best to be able to completely heal it. Have you figured out how to solve the problem of money?" Lan Zhi nodded, took out a flat log box from her sleeve, opened it, and handed it to her, saying, "I don't have money now. I want to use this to pay instead. How much do you think it's worth?" After finishing her work, Rong Keyun picked up a cup to drink water. When she saw the box being handed over, she casually glanced at it. Inside the ordinary-looking box was an ordinary-looking dried vegetable placed casually. She couldn't help laughing and said, "It's just a plant. You want to use it to pay—" Before she could finish speaking, her gaze suddenly froze. The Star-building Grass?! Rong Keyun almost spat out the water in her mouth. But worried that the water would splash onto the Star-building Grass, she swallowed it hastily, and as a result, she choked and coughed several times in a row, showing a bit of embarrassment for once. After she finished coughing, she calmed down. The main producing area of the Star-building Grass was in Yongzhou, and it had always been in the hands of the Tianyi family. It could be said that the Star-building Grass had contributed a lot to the Tianyi family's ability to firmly hold the top position among noble families. The Tianyi family only supplied one hundred Star-building Grass plants to the outside world every year. Among them, ninety plants were given to other noble families with agreements, and ten plants were supplied to the Tianyi Auction. The Tianyi Auction was also only open to noble families. Cultivators from humble families didn't even have the qualification to enter, let alone bid. The Star-building Grass would also grow in some secret realms, but there were only one or two scattered plants. Whether one could find them depended entirely on luck. Most cultivators who got it would use it quietly by themselves, and very few would let it flow out. But as long as it flowed out, the price would immediately be driven up to over one million. Anything else was fake, used to deceive laymen. Rong Keyun was certain in her heart that the one in front of her was probably not genuine, but she didn't say it directly. She just said委婉ly, "If it's genuine Star-building Grass, it definitely can be used. It's just that there are many fakes of the Star-building Grass. I need to confirm whether it's real or not." Lan Zhi had expected this and said, "I understand. Please go ahead." Rong Keyun put down the teacup, wrapped her hand with a silk handkerchief, picked up the Star-building Grass, carefully examined it for a moment, and then sniffed it. Since she couldn't see anything abnormal, a glimmer of hope secretly emerged in her heart, and she asked, "Can I cut off a bit of the leaf?"