Cao Meng was also very happy for Chen Yu on the side, and asked him to invite him to dinner, but Chen Yu agreed without thinking about it. At this time, the prompt sound of the completion of the main task of the system sounded in his mind, it was really a double happiness, and he finally completed the main task, and he wanted to open the system interface to check it immediately. But because Cao Meng was by his side, it was not good for him to watch it immediately. So he wanted to send Cao Meng away quickly, so as to see what new main quests the system had after completing the main quest.

Thinking so, he said to Cao Meng: "I'll send you back, my notice has arrived, and your estimate is almost there." After Cao Meng saw Chen Yu's admission letter, he was also a little anxious, and when he heard Chen Yu say to send him back, he didn't shirk and agreed. Chen Yu put down the admission letter, and then drove Cao Meng back quickly. After that, he didn't go home, but parked the car directly on the side of the road and called out the system.

He opened the system, and after completing the main quest this time, the system gave him a system upgrade volume, a chance to increase the level of his ability, and 500 points. Raise the ability level first, he'll have to think about which ability to upgrade, so it's better to upgrade the system first. Thinking of this, Chen Yu set his eyes on the system upgrade volume, and used it silently in his heart.

The system prompts: "Do you want to upgrade your system?" Upgrading from a D-level system to a C-level system requires a system upgrade volume and 100 points. When Chen Yu heard that the upgrade system actually required 100 points, he couldn't help but scold the system for being too cheating. The 500 points that just arrived, and before it was hot, the 100 points were gone. However, sooner or later, the system will have to be upgraded, so Chen Yu still clicked to upgrade.

After clicking on the upgrade, the system will display an upgrade progress bar, which shows that the system upgrade progress is 1%. Well, again, it's a matter of waiting. Chen Yu looked at it for a while and found that the progress of this system upgrade was only 1% in 1 minute. After this upgrade, it will take 100 minutes, and he wants to see the main quest first, but the system prompts him that he can't use any functions of the system during the upgrade. So he could only suppress the anxiety in his heart, turn off the system interface, and drive home directly.

When he returned home, he took out the bag of the admission letter, which contained the instructions for new students and a bank card. Just now he patronized to read the admission letter, and then he hurriedly sent Cao Meng back, but he didn't look at these things. Now is the time to take advantage of the system upgrade to take a good look.

The instructions for new students are written on it with information such as precautions for new students and tuition fees, and after Chen Yu read it, he read it again and made sure that he had written down all the important things before he was relieved. At this time, the system was also upgraded, and Chen Yu opened the system interface.

As soon as she opened the system interface, Nana's whole person came out and startled Chen Yu. I saw Nana greeting Chen Yu with a smile and said, "Master, I haven't seen you for a long time." Chen Yu saw Nana greeting him, and subconsciously replied, "Yes, long time no see." But then he reacted, this is not quite right, how could Nana take the initiative to say hello to him? In the past, he took the initiative to find Nana, and he asked Nana before answering, but now he is so active? Is this still the same Nana? Chen Yu looked at Nana suspiciously, and asked: "Nana, what's wrong with you, what's wrong with you, what's ......" Chen Yu didn't know how to say it, and before he finished speaking, Nana directly took his words: "How did you become so smart, right?" It's because you've completed the main quest, master, so I've become smarter. By the way, I would like to thank you, master, if it weren't for the master, I would still be in a mess. Master, how do you want me to thank you? ”

Chen Yu couldn't help but be very surprised when he heard Nana say that her change was because of the system, it seemed that the benefits of completing the system task were greater than he imagined. Hearing Nana say that he wanted to thank him, he hurriedly said, "No need, no need." ”

How do you know that Nana said to him seriously: "That's not good, the book says that people should be grateful, and the master has given me emotions, I must thank you." But how can I thank you? After Nana finished speaking, she lowered her head and thought very seriously, it seemed that she was determined to thank Chen Yu.

Chen Yu couldn't smile bitterly when he heard Nana's words, what kind of person are you? It's obviously a system assistant, okay. Anyway, what kind of book did she see this theory from, if only people in reality knew about the gratitude of the picture like her.

Suddenly, Nana seemed to think of something, raised her head, and said to Chen Yu shyly: "Well, master, I know how to thank you." It is said on the Internet that the best reward for girls to boys is to make a promise, but I seem to be already your person, so I can only ......" She didn't say the following words, but started to act directly, only to see her slowly unbutton her own clothes.

Chen Yu was stunned by her actions, damn, is she going to do something? Nana wore a white shirt today because the bust was so big, and the shirt looked like it was about to burst. Now she unbuttoned the shirt on her chest, and the pair of murder weapons popped out at once. When Chen Yu was stunned, Nana had already unbuttoned her shirt, revealing her snow-white skin and towering breasts. Then she reached behind her back, as if to untie the restraints on her chest. Chen Yu suddenly couldn't stand it anymore and shouted, "Nana, what are you doing, stop it!" ”

He didn't shout, he couldn't do it, Nana was originally a flawless goddess image, and now she was half-dressed, and his little brother had already stood up in protest when she began to unbutton it. If she untied the restraints on her chest, it was estimated that his little brother would explode directly...... And Nana is just a virtual image, he can't do anything to her, and when the time comes, there will be no fire to vent, and it will be him who is uncomfortable. So he hurriedly drank Nana.

Nana heard Chen Yu tell her to stop, and obediently stopped reaching out to her smooth back, intending to unbutton her hands on the bra, and looked at Chen Yu very suspiciously and asked, "What's wrong with the master?" ”

Chen Yu hurriedly said, "What are you doing here?" Nana looked at Chen Yu very innocently and said, "Of course, I took off my clothes to show the master, to thank the master." Chen Yu heard Nana's answer, and saw her innocent eyes again, and suddenly a mouthful of old blood spurted out. He thought that Nana said thank him to give him abilities, points or something, so he was quite looking forward to her thanks, who knew that Nana would actually use this to thank him.

"I'm not Cao Meng's [***] ah!!" Chen Yu roared in his heart.

Chen Yu asked Nana helplessly: "How did you think of thanking me with this?" Nana was puzzled: "Isn't this kind of thanksgiving?" I read on the Internet and said that this is the best thank you from girls to boys. ”

Chen Yu suddenly felt that there were 10,000 grass and mud horses running through his brain. Okay, this is indeed the best reward for a girl to a boy, but you're not a real person, okay, this is purely torturing me. Chen Yu complained in his heart. But he can't say that to Nana, after all, people are also kind. And the key is that she is so simple and believes the words on the Internet so easily. It seems that her IQ is normal, but her EQ is a bit low.

But she can actually go online, which makes Chen Yu very surprised, doesn't that mean that if he doesn't understand anything in the future, he can directly ask Nana to go online to help him Baidu? Nana is so easy to use.

Thinking of this, Chen Yu patiently said to Nana: "Nana, don't easily believe what is said on the Internet, many things on the Internet are deceitful. In the future, if you have less access to the Internet, you will be deceived again, you know? By the way, don't you want to thank me? After that, when I have something to ask you to check on the Internet for me, you don't refuse me. Chen Yu was afraid that Nana would thank him for doing something out of the ordinary, so he hurriedly took the initiative to ask.

"Don't worry, master, this matter will be wrapped up in me in the future, if you have anything to ask me to help with, just tell me. Otherwise I'll be angry. When Nana heard Chen Yu say this, she patted her chest with her hand, and assured Chen Yu that her towering chest was trembling.

Chen Yu was also very happy to see Nana so assured, and couldn't help but sigh that the system was really great after the upgrade.