The dark flames have no light or heat, and there is no other form of expression except what can be seen in the eyes. The dark flames are like illusory shadows and cannot have any impact on the world. Oh, except turning the corpse of the evil beast into a meeting.

Chen Xinghan squatted down, reached into the dark flames, and found a bead with purple light flashing out of it.

The evil energy beads live in the body of the evil beast, representing the source of the evil beast's own strength, and are also an important item that can enhance the power of the evil exorcist!

After putting this fel bead that represents the strength of Samsung into his personal manager, Chen Xinghan turned around and left here and walked towards the exit of the frozen swamp.

"You are here, the upgrade mission has been completed." After Chen Xinghan returned to the Evil Exorcist Guild above the Shengxue Peak, he immediately ran to the Holy Artifact Raising House in Area B. After walking into the Holy Artifact Raising House, he saw Mu Ranxiang wearing a white coat and a pair of frameless glasses on his face, holding one hand in his pocket, and drinking coffee there with the other hand, and then he saw Chen Xinghan coming and saying in a very affirmative tone.

"Why are you so sure that I have completed the task?" Chen Xinghan smiled, came to Mu Ranxiang and asked.

"If you had some doubts before, now you are 100% in your attitude. Besides, if you really haven't completed the task, you won't come to me anymore." Drinking the coffee in your hand, Mu Ranxiang glanced at Chen Xinghan and smiled.

"The coffee here is really bitter." Chen Xinghan put down another cup of coffee he had picked up before, stuck out his tongue and said, "Well, I have completed the upgrade task now. You can now upgrade my holy weapon to the level of four stars."

"Brutal coffee helps to refresh the mind, and it also has its own unique flavor. For example, those who like to add sugar and milk are completely evil ways!" Mu Ranxiang first mocked Chen Xinghan's taste, then stretched out her hand and said, "Okay, hand your Fenriel into my hands. At the same time, tell me what you have for the next upgrade."

Chen Xinghan handed Fenriel, who had been put together intact, to Mu Ranxiang, and asked, "What are the requirements for upgrading? Isn't it enough just like the previous few times? What other requirements do you need?"

After reaching out to take the Fenrier from Chen Xinghan's hand, Mu Ranxiang directly carried Fenrier to a large rectangular platform, and then put Fenrier on this platform, saying without looking back: "The holy artifact has two opportunities to add a new system, one is when upgrading from three stars to four stars, and the other is when upgrading from six stars to seven stars. These two opportunities are very important, and you must seize it."

"Add a new system? How to add a system?" It was the first time Chen Xinghan heard that there was a new system when the holy weapon was upgraded, so he hurriedly asked.

"Well, for example, some people add extremely fast systems to their holy tools, so their attack speed will be doubled or more than doubled. Some systems with huge power will be increased, and then their attack power will also increase." Mu Ranxiang thought for a while and said.

"So, what systems are there? How many systems can you add?" Chen Xinghan didn't expect that there was such a benefit, so he hurriedly asked.

"What systems are there? You can choose one of the ones written in this book." Mu Ranxiang said and threw them to Chen Xinghan with a book, and then said: "When you upgrade from three stars to four stars, you can only choose one system to be installed. When you upgrade from six stars to seven stars, you can install two systems."

After Chen Xinghan reached out to take the notebook, he opened it and checked it carefully. The systems in this notebook are really diverse, and it is really difficult to make Chen Xinghan choose a system at once.

Well, Mu Ranxiang didn't mean to urge her, but just waited slowly on the side for Chen Xinghan's choice.

Half an hour passed like this. Chen Xinghan closed the system notebook in his hand, then turned around and smiled and said to Mu Ranxiang: "I want to install a 'knock' system for my Fenrier."

Mu Ranxiang was originally indifferent. When she heard Chen Xinghan wanted to install this system, she frowned and asked a little hesitantly: "Are you sure you want to choose this system? You must know that although this 'knock' has the ability to stop the evil beast when attacking the evil beast, the pause time is only 0.5 seconds, and the chance of triggering evil beasts of the same level is only one percent, one percent lower than one star, one half lower than two stars, one hundred thousand higher than one star, and one two stars higher than two stars will be completely invalid. This system is just a useless overall."

Listening to Mu Ranxiang, thinking that he didn't know the true characteristics of this system, he explained it specifically again. Chen Xinghan smiled and said, "Mu Ranxiang, I know the characteristics of this system very well. For others, this is indeed a waste of money, but for me, it's not necessarily true. Anyway, you can just install this system for me, I know it."

Looking at Chen Xinghan's face with a "real man, cute big breasts", Mu Ranxiang knew that he did not make this decision with a fever, but that he really felt that this system was useful to him, so he chose this system.

After only knowing that Chen Xinghan really knew what this system was like, Mu Ranxiang didn't ask anything anymore. The evil-exorcist chose the system he wanted. The holy weapon leveling master only needed to fulfill his due duties, so he just needed to do it according to the needs of the evil-exorcist.

Although Mu Ranxiang was not clear about how Chen Xinghan would operate after installing a system, she still began to upgrade Chen Xinghan's holy weapon according to his wishes and installed this "knock" system into Fenrier.

Mu Ranxiang began to walk around the platform, and with the chalk made of special materials in her hand, she began to draw magic patterns on the outside of Fenrier's outside, and gradually combined them into a magic refining formation.

When painting the magic refining array, Mu Ranxiang kept changing to chalk made of different materials. Colorful magic patterns covered Fenrier's surroundings, and various colors of light flashed. At the same time, a phantom of the magic refining array flashing with colorful light appeared above Fenrier. As Mu Ranxiang painted more and more magic patterns on the platform, the phantom of the magic refining array became clearer and clearer!

Finally, Mu Ranxiang's last stroke! The magic refining array composed of magic patterns below and the magic refining array that looked like a substance on the platform began to flash and echoed with light. At the same time, a stream of elements turned into a strong wind and gathered, surrounding Fenrir's body turned into a rapid whirlwind!

The elemental whirlwind began to slowly penetrate into Fenrier's huge blade, and then a dazzling light flashed by, everything became calm, the magic refining array and the elemental whirlwind disappeared, and only a Fenrier, who exuded a powerful aura of power, lay flat on the platform!

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Chapter completed!