The storage compartment hadn't changed. The number of grids hadn't increased or decreased. All the items were staying quietly in the system storage, and none of them had disappeared.

  Apart from the previous ones, the important ones left were just the system mall, skills, and equipment modules.

  Guo Xiaobei frowned and thought hard for a long time. Then he suddenly realized his own entanglement. Why not just check them one by one? Even if none of them had changed, it... it didn't matter!

  As he expected, the equipment column hadn't changed. In the three-dimensional image, he was standing on one side, holding a long spear in his hand, looking quite imposing.

  When he opened the skills column, he saw that the secret manual of the Overlord Spear he had newly learned had already lit up a small box. However, the color was very light, indicating that his proficiency was still very low. But that was okay. He would become more proficient in the future. However, he noticed that besides the previous three columns of skill boxes, there was an additional row on the far right, named Independent Skills. The column of Independent Skills was a very pleasing pink color, and the first small box had already been activated, with two words written on it: "Play Dead".

  "..." What did that mean? "Play Dead"?

  However, the system didn't explain what "Play Dead" meant. It just explained that all the skills in the Independent Skills column had to be comprehended by the host zombie himself. In other words, the skills in this column could only be understood by Guo Xiaobei himself. It had nothing to do with system upgrades or task rewards.

  Feeling extremely depressed, Guo Xiaobei closed the skills column. He just thought that perhaps this skill came from when he was so frightened by Han Yang's imposing manner that he fell to the ground. He remembered that Han Yang suddenly changed his expression at that time, reached out to help him onto the bed, and covered him with a quilt...

  Oh my god... He didn't want such a useless skill...

  Could this be considered a system upgrade? If the upgrade only resulted in this, he was really speechless. When he was forced to upgrade, if Han Yang had cut off his head or smashed his head open to take out the brain core, that would have been a real tragedy!

  Now only the mall was left. Was there anything that needed to be upgraded in the mall? Besides, even if it was upgraded, he couldn't use it. The things in it were already unaffordable for him. If more things were added after the upgrade, wouldn't it be even more unaffordable!

  Having nothing better to do, he might as well open it and have a look. But as soon as he opened it, it immediately gave Guo Xiaobei a pleasant surprise.

  As soon as the mall was opened, the system immediately gave a voice prompt: "The mall has been updated. The function of exchanging brain cores for money has been added. The host zombie can explore it by himself."

  Guo Xiaobei was excited. Originally, brain cores could only be used to replenish survival points. One primary white brain core could be exchanged for one survival point. However, he hadn't used survival points even once. As could be seen under the attribute column, because he had been constantly doing tasks, he had already saved up over a thousand survival points. But the system hadn't yet prompted what the specific use of these survival points was.

  Because he had a lot of survival points, Guo Xiaobei had never exchanged brain cores for survival points. So most of the brain cores were still stored in the plastic red bucket in his system storage, except for some that were exchanged with the survival base for food. Now that there was this exchange function, although he didn't know what the exchange rate was yet, generally speaking, he should be able to buy quite a few things. At least he could buy a pizza that he had always wanted to eat but couldn't bear to buy.

  The tale has been stolen; if detected on Amazon, report the violation.

  Guo Xiaobei tried to exchange one brain core.

  Ding. The system prompted that one brain core could be exchanged for 10 units of money.

  Wow, it was surprisingly high. Guo Xiaobei was tempted.

  Compared with the exchange rate at the base, the price given by the system was much higher. At the base, one brain core was equivalent to ten yuan, of course, the current ten yuan at the base. But if one brain core was put into the system, it was equivalent to one hundred yuan in the past.

  Although the value of one hundred yuan in the past and ten yuan at the base was different, generally speaking, it was more appropriate to exchange with the system than with the base. If one wanted to buy weapons provided by the base, the brain cores required later had to be at least those of evolved zombies. Guo Xiaobei didn't have many such brain cores on him, far from meeting the minimum exchange number at the base.

  Although the weapons provided at the base were good, they were far inferior to those in the system. There were all kinds of powerful weapons in the system. If the price was ignored, it was really exciting. But when looking at the price, one would immediately feel discouraged. Now that there was an additional exchange business, presumably the mall could be fully utilized in the future.

  Guo Xiaobei closed the mall contentedly, thinking that this upgrade was really good. Just as he was about to exit the system and get up, he suddenly saw a new forging column in the middle. This hadn't been there before, so Guo Xiaobei clicked on it curiously.

  A huge forging furnace appeared in front of him. This forging furnace was similar to the kind used by ancient people for alchemy, just like the alchemy furnace in "Journey to the West" that was kicked over by the Great Sage Equaling Heaven.

  The forging furnace was slowly rotating. There were four circular openings on it, from which firelight and heat were emanating. Below it was divided into eight sides, engraved with eight different pictures, which were extremely exquisite.

  There were several options under the system, such as "Open Furnace", "Close Furnace", and "Forging".

  Guo Xiaobei chose "Open Furnace". One of the picture panels slowly opened, and then a blast of high temperature hit him. The tongues of fire rushed towards Guo Xiaobei's face, making him almost unable to breathe. Fortunately, it only lasted for a few seconds. Then the fire in the furnace retracted again and returned to its original quiet state.

  The orange flames faintly had a white light. Guo Xiaobei took a few glances and then closed the furnace door again. According to the system prompts, forging was divided into two types. One was manual forging using the forging furnace, which required time, effort, and money. The other required evolutionary stones and weapons to be put in at the same time, and then the forging furnace would forge by itself.

  However, now he had weapons and the forging furnace, but he didn't have evolutionary stones anymore. With his courage... he definitely didn't dare to ask Han Yang to give them back!

  Guo Xiaobei silently let out a sigh and was about to open his eyes. Suddenly, something warm pounced on him and rubbed repeatedly against his neck.

  This... this... this...

  The particularly strange touch made him immediately realize that he wasn't wearing any clothes, and the thing that was rubbing against him...

  Guo Xiaobei suddenly opened his eyes. The first thing he saw in his vision was black and shiny hair.

  The hair swayed slightly with its owner's rubbing movements, scratching Guo Xiaobei's face and neck, making it very itchy. Guo Xiaobei couldn't help but move and reached out to push the man who was hugging him away and sat up.

  Han Yang didn't wake up. He frowned and muttered a few words impatiently, then turned around.

  Guo Xiaobei was shocked when he saw Han Yang's bare arms. Why wasn't Han Yang wearing any clothes either? He could explain that he wasn't wearing clothes because he had been sweating all over before and Han Yang had taken off his clothes for him. But he couldn't understand why Han Yang wasn't wearing clothes either. Especially when he thought about Han Yang's previous actions...

  Guo Xiaobei stiffened his neck and looked down. Although he didn't feel anything wrong with his body, as soon as he looked down, he could see the patches of red, green, blue, and purple on his body.