I don’t know who brought the letter to the person who stole the clothes. That person finally exchanged the things and gave Bibi a fish before crossing his name off the small book.
　　The players who couldn’t bear the heat gritted their teeth and bought summer clothes. Bibi earned almost as much money from selling clothes as she earned from haircuts in the whole spring.
　　Bibi went to Zhuang Yi Restaurant to buy a cup of summer ice drink for this reason.”It feels so good to hold the thigh of the big guy!”
　　That’s right, Zhuang Yi also started selling cold drinks.
　　Some people can endure not to eat delicate dishes, can endure not to sell nice and cool summer clothes.
　　But in the hot summer, who can resist the cold drink?
　　The price of drinks doubled and sold as much as they made, making a lot of money at the end of the day.
　　Shen Xin divided half of the profit from it to his small partner.
　　Jing Yan, who got the bonus, laughed helplessly and gave all the newly mined ice cubes and ores to Shen Xin.
　　When trading, Shen Xin put tomorrow’s lunch into the trading column.
　　Jing Yan: “?”
　　”It’s been a long time since I went fishing. I’ll go out tomorrow.” Shen Xin pointed at the copper pot and grill.” Do you want to eat new fish?”
　　”Yes!”
　　……
　　When the number of lower-level sprinklers increased to 26, it shared nearly half of the crop watering.
　　Advanced furnaces can double the smelting power of low-grade ores.
　　Shen Xin uses a simple melting furnace and smelting furnace to refine copper ingot, blast furnace to refine iron ingot, as long as the ore quantity keeps up, 5 low-level sprinklers can be made in one day.
　　After quickly watering, Shen Xin rode out with an advanced fishing rod. She was not in a hurry to run to the beach, but first found the town doctor and gave him a tulip.
　　”Thank you.” After a few polite words, the doctor led Shen Xin to the office and took off the vision test hanging picture on the wall, revealing a small door behind the hanging picture.
　　It’s a main quest.
　　Shen Xin followed in and saw an amazing scene.
　　The room inside the small door was very dark. Large and small utensils and boilers were boiling unknown colored liquids. An old desk was piled with notes and papers.
　　”Shen Xin, we can be considered friends. There are some things I want to tell you.”
　　The doctor started explaining the plot.
　　” Perhaps you’ve already noticed that there are many monsters outside the town. Although they won’t invade the town, it’s not a solution.”
　　”My family participated in the war against magic a hundred years ago. Grandpa was weak since he was young, but his brain was very smart. During the war, he accidentally discovered the weakness of monsters and developed anti-magic potions.”
　　”According to Grandpa’s records, there are two types of medicine, internal and external…Do you understand what I mean? As long as the monster drinks the first potion, it can cause a period of HP loss.”
　　” The second type is a throw-type. After the monster is contaminated with the potion, it will cause a period of attack stagnation. Warriors can take advantage of this time to defeat the monster.”
　　” Potion functions can be stacked…But after the war ended, no one expected that monsters would appear again one day. Grandpa’s potion formula was also missing a part.”
　　” So, in order to protect the town, I want to re-develop the potion. Now, I’ve encountered some trouble. Can you help me?”
　　[The doctor’s affection for you has reached five hearts. He requests your help in researching the potion. Do you accept the mission?]
　　Of course it’s done.
　　Shen Xin did not hesitate to click OK. There was an additional item in the main quest bar:
　　[R & D Potion 1: Give 500 slime mucus to doctor (0/500)]
　　”Oh? This mission is divided into several tasks?”
　　After seeing the logo “1” behind “R & D Potion”, he estimated that after completing this item, there would be a “2”.
　　”500 slime slime…Only Gouzi would have this amount, right? I hope he hasn’t sold the slime.” Shen Xin muttered to himself.
　　But what if?
　　After all, with so many drops, how much space would they take up?
　　Originally, she wanted to ask Gou ‘zi for mucus tomorrow, but at the thought of this possibility, Shen Xin immediately turned her horse around and headed west of the town.
　　As she rode she looked up into the trees.
　　I remember Jing Yan said he lived in a tree house.
　　Tree house this kind of building is still relatively conspicuous, Shen Xin soon found Jing Yan living place.
　　This was the first time she had seen Jing Yan’s home. Looking at the building that was about four or five floors high, Shen Xin did not know whether to admire the person who built this room or Jing Yan who dared to live here.
　　The trees supporting the house didn’t look that thick either. This house looked even more dangerous than her dangerous house!
　　As the horse approached, Shen Xin noticed the white horse tied under the tree.
　　” It’s okay. It seems like he hasn’t left yet.”
　　Jing Yan was packing up and preparing to set off when he suddenly heard someone calling him from under the house.
　　He looked out of the window and saw his friend waving from below.
　　”Why are you here?”
　　Jing Yan opened the door on the floor and lowered a rope ladder that led directly to the ground.
　　Shen Xin was speechless.
　　After climbing up the ladder along the trunk, Shen Xin felt a little weak.
　　”I remember that the boss of the first floor once weakened you, right? Did you use this ladder to climb up and down at that time?”
　　Jing Yan nodded.”Hmm! I almost fell.”
　　” It’s too dangerous…” Shen Xin stood far away from the door and looked at the structure of the tree house at a glance.
　　The tree house has no compartments, and the bedrooms, living rooms, and kitchens are scattered in several corners.
　　It is worth noting that there is a large window next to the bed, through which you can see the town and surrounding areas.
　　”Your vision here is great!” Shen Xin leaned over the window.”That’s my farm. You can see my house clearly! Wow, what a magnificent view of my land from here.”
　　Jing Yan tensed up for a moment when he heard the previous words.
　　Shen Xin didn’t think he was a spy, did he? Although he did choose this place as his residence to master the situation in the town and its surroundings.
　　Fortunately, her little friend was addicted to the scenery, and it was Jing Yan who asked before pulling her attention back.
　　”Didn’t you say you were going fishing? Why are you looking for me?”
　　”Oh!” Shen Xin remembered her purpose for coming here.” Do you have slime?”
　　”Yes.”
　　”Do you have 500?”
　　“？？!!”Jing Yan surprised.jpg
　　He moved to the box and asked,”Yes, there are. What do you want so much for?”
　　” Required for the main mission.”
　　”So that’s how it is.”
　　Fortunately, Jing Yan was also a hamster type player. He liked to hoard materials and did not sell all the mucus.
　　500 Each mucus quantity is huge, Shen Xin originally wanted to use silver coins to buy, Jing Yan insisted on not collecting money.
　　”You’ve already given me so many things. This thing is useless except for making torches. I don’t need torches. Just take it.”
　　Shen Xin had to accept things, and then poured to Jing Yan: “Remember to eat fish at night, let me see, 9 o ‘clock you probably back?”
　　”Yes, I’m back. I’ll look for you when the time comes.”
　　In fact, it is very difficult to fight on the second floor underground. Jing Yan doesn’t go home until 10:30 p.m. these days.
　　But it’s too late for dinner.
　　Jing Yan didn’t tell Shen Xin about this, but after she left, he set an alarm clock at 8:30 to remind himself not to forget the time.
　　……
　　After saying goodbye to Jing Yan, Shen Xin handed 500 slime to the doctor.
　　The doctor thanked him repeatedly, and the mission was updated accordingly.
　　[R & D Potion 2: Give 10 bottles of honey to doctors (0/10)]
　　Shen Xin:
　　Ho! The potion for emotional monsters tastes pretty good, huh? And honey.
　　Fortunately, Shen Xin has this thing himself.
　　She rushed home and submitted 10 bottles of honey.
　　[R & D Potion 3: Bring 20 random vegetables to the doctor (0/20)]
　　[R & D Potion 4: Bring 20 fruits to the doctor (0/20)]
　　Shen Xin was speechless.
　　After delivering the third and fourth missions, Shen Xin felt that the monster’s beheading potion was quite good.
　　After completing these tasks, the main quest temporarily stopped updating.
　　The doctor asked Shen Xin to wait outside for a while. He went into the small room for more than ten minutes and came out with two bottles of red and blue medicine.
　　”It’s done. It’s been hard on you these days!”
　　Shen Xin: Actually, it’s not that hard. I have almost everything you want.
　　”However, the development of the potion is not over yet.” The doctor handed two bottles of medicine to Shen Xin.” Please do me one last favor.”
　　” The red one is the drinking potion, and the blue one is the spray potion. Please take these two potions and try them on monsters to see if they are effective.”
　　After saying that, the main quest refreshed again.
　　[Potion Development 5: Use the potion on any monster and feed back the experiment results to the doctor (0/2)]
　　So there was an experiment.
　　This task was not difficult either.
　　Shen Xin took two bottles of potions and quickly rode into the forest to look for traces of wild monsters.
　　There was nothing in the woods except for a lot of strange things.
　　Shen Xin soon saw an innocent blue slime and threw the Spray Potion at it.
　　After the slime was stained with the potion, it was immediately immobilized. It could not run or attack. At the same time, a message popped up.
　　[The test results are as follows: ]
　　[Low-level Restriction Potion: Causes monsters to be immobilized for 3 minutes]
　　Shen Xin wrote down the data and gave Slime a good time. After that, she went on to look for the next victim.
　　Throwing potions was easier to use. Just throw them out.
　　Eating potions is a bit troublesome.
　　Shen Xin looked at the surrounding lake and thought that if this bottle of medicine was poured in, the medicinal properties would be diluted and gone, right?
　　She couldn’t help but think of the time when she fed fluorescent fish to Zhang Yunyun and the others.
　　She used a slingshot to shoot fish into their mouths, but the potion couldn’t be fired.
　　Every time this happens, it is time to learn from Jing Yan, the god of Sao operation.
　　”If it was Jing Yan, what would he do…”
　　……
　　Fan Qing and Xiaojie have been working hard recently.
　　The two of them knew how strong they were. They usually only picked the weakest slime to fight. When they encountered high-level monsters, they would run away immediately. They practiced the Tortoise Principle and never fought against strong enemies.
　　Today was also the day they came out to fight monsters.
　　Brother Fan, there’s movement ahead.”
　　”Let’s go and take a look. If it’s not a slime, run away.”
　　Fan Qing and Xiaojie quietly moved closer to the place where the sound came from. After pushing aside the grass, they were shocked by the scene in front of them.
　　”Where’s the mouth? Forget it, drink it!”
　　Shen Xin grabbed a slime with his elbow, unscrewed the red potion and stuffed it into the slime.
　　Slime can absorb everything from body to mouth.
　　Shen Xin watched as the red potion spread into the slime’s body, and the slime gradually turned purple. It let out a muffled scream, and the HP bar above its head continued to drop.
　　-5。
　　-5。
　　-5。
　　After the slime died, new information popped up.
　　[The test results are as follows: ]
　　[Low-level Damage Potion: Deals 5 damage per second for 3 minutes]
　　Shen Xin patted the dust off his hands and said to the air,” Thank you for participating in the investigation. Your feedback is very helpful.”