It was the second day after the elixir was developed, and the snow had almost melted under the sun for several days. Accompanied by a group of sober people, Cheese and the others returned to the earthly world after a long absence. Although the potion that can suppress the disease of the proto-rat people has been developed, the materials used by the cheese were all found by the awake from the valley city, and in the process of the mage mixing the potion, some of the relatively scarce raw materials have almost been consumed. Luckily, the potion made by Cheese was enough for the awakens in Vale City, making them allies of the mages.

However, with the use of the drug, some problems were also found with the cheese. First of all, while these potions do allow mutant nezumi and giant nezumi to escape the effects of their illness, they do not seem to work on ordinary proto-nezumi. The mage had tried to use this potion to give it to ordinary nezumi, but it only calmed them down for a short time, and as the effect of the potioned wore off, the nezumi returned to madness again. Due to the limited raw materials in the first batch, Cheese could not spend the precious potion on experiments at will, and after confirming that the potion was indeed effective for the awake and had few side effects, the mage had to stop testing the common rat people. Secondly, as mentioned above, the fact that there are almost no side effects does not mean that there are no side effects, and perhaps for those who are sober, the mild side effects of the drug are nothing compared to the sober mind, but as a researcher, cheese cannot ignore it. Proven side effects include a weakening of physical strength and a stronger sensitivity to light. As for other problems that require long-term observation to discover, the mage has no way to get results for the time being.

It stands to reason that since such a major breakthrough has been made in the research and development of potions, the next thing Cheese needs to do is to develop a potion to treat ordinary rat people in one go, and even to cure humans who have not yet been turned into rat people. However, the mage had to stop what he was doing, for the simple reason that it was not that he wanted to stop, but that he had to stop his work because of the lack of several important raw materials. The Sober have done a thorough search of Valley City, and since they can't find any more ingredients in the city, they have no choice but to go out and look for these things.

As for why the search for raw materials must also be done by Cheese himself, this is because the rats cannot move in the sun for a long time, and they have lost many buildings as a barrier to block the sun, and if they want to rely on the awake people to direct ordinary rat people to find raw materials, it will greatly extend the time to finish, and in desperation, the mage can only personally lead the others out of Vale City and go to the vicinity to find raw materials. Of course, Cheese also thought about opening the portal to the Grey Tower in Vale to get the ingredients. However, many of the things that need to be used in the potion prepared this time will not be stored in the Gray Tower, not that there is anything wrong with the storage of the Gray Tower, but some too common materials are not qualified to enter the storage room of the Gray Tower. Moreover, revealing too much information about the Grey Tower to outsiders is also a taboo for the apprentices of the Grey Tower, and Cheese was able to reveal the Grey Tower to Heather and the Frost Guardians without impunity, because they had more or less dealt with the organization. But now that Leon and his knights of the kingdom are included in the team, as far as Cheese knows, his teacher doesn't like to have anything to do with the kingdoms of the secular world.

"Ah, I didn't think the sun was so kind before!" Elsa couldn't help but say as she stretched her body in the long-lost sun. After all, human beings are still animals living in the sun, whether it is candles or lamps are only temporary tools for lighting, although they can also play a role in lighting, but can not satisfy people's thirst for sunlight.

Cheese didn't care about this, as a researcher who lived in the library regularly, it was normal for him to not see the sun for several weeks as long as he started working. The sudden appearance of a strong light made his eyes a little unbearable, and the mage involuntarily raised his hand to block the top of his eyes to reduce the irritation of his eyes.

"Hehe, it looks like you really resemble us. As the leader of the Sober Ones, Hal naturally followed them to the surface to see them off, and the former official who had been in charge of Vale City was now a little uncomfortable with the sunshine he was used to.

"Don't exclude yourself from humanity so quickly, maybe I'll find a way to turn you back into humans when I come back this time. Cheese was in a good mood when he returned to the surface, and he smiled and replied to the black-haired rat man.

"Then I'm looking forward to the good news from you. In any case, the sober will always be your friend. With a deep bow, whether or not Cheese would return, and whether he would eventually be able to develop a cure for the plague, at least for now, the mage had saved all the mutants in Vale, and he had kept his promise, and the awake would keep it. Retreat into the shadows with the rats who had come to see them off, and they couldn't stay on the ground for too long during the day.

"How's your doing? Actually, you could have stayed here with them. Cheese said to Gloria.

"Please don't worry about me, my lord, I'm fine. Nezumi replied.

Perhaps because she was stabilized by Cheese and Ann Lina, Gloria has some special abilities compared to those who have been restored to normal by potions, such as the fact that she can still move normally in the sun despite her aversion to bright light. This is what makes it impossible for Cheese to refuse the request of her peers. However, on second thought, having a nezumi with you in the county at this time can indeed save the team a lot of trouble. And after knowing Gloria's identity and experience, both the three elsa and Leon and other kingdom knights have a good impression of this strong woman.

"Okay, then we're off to go. After confirming that Gloria was in good health, Cheese nodded to the group and set off.

Without the nezumi and the danger lurking in the shadows, the group climbed over the walls of Vale City at great speed. Looking back at the fortress city from outside the city, who can believe that the actual administrator of the city has become a rat man?

With a loud whistle, the knights of the kingdom began to summon their horses that were herding nearby, and their mounts, like those of the Knights of the Hammer, had been herding near Valley City before entering the city, and with the call of their master, a team of warhorses soon emerged from the nearby woods. Leon's team didn't lose much manpower, but fortunately they had brought a few more horses to carry supplies before, so they were given enough horses to travel on their behalf.

"Where are you going to find materials, my magical friend?" asked the Blood Lion, riding over to Cheese on horseback.

"You said there is the kingdom's Apothecary Guild in Turbidity Town, and I think they should have what I want. The mage asked.

"I see what you mean. It's just that even if I come forward, they won't necessarily be willing to hand over the materials to you. You know, not every scholar is as good-tempered as you. Leon said. In a kingdom, only a small number of people can become scholars, and the dissemination of knowledge is very difficult due to the limitation of the number of books and various problems, so these scholars enjoy a high status in each kingdom, especially the apothecary and other extremely practical scholars, even Leon, who is the second head of the Kingdom Knights, cannot directly order them to hand over the materials to the cheese.

"Don't worry, my knight friends, as long as they have the ingredients in their hands, I naturally have a way to get them without harming anyone. With a wicked grin, Cheese had little affection for the presumptuous pharmacists.

"Haha, that's easy to do!Let's go, let's go to Turbidity Town!" The Blood Lion was also quite dissatisfied with the apothecaries, he had a preliminary understanding of the skills of cheese in the past few days, and for the knight chief who had already regarded the mage as a friend, it was good entertainment to see those apothecaries eating deflated in the hands of cheese.

So in such an atmosphere, the group that temporarily bid farewell to Valley City set the destination of the first stop as Turbidity Town.