People are in Hogwarts, What the hell is the flood system?

You previously unintentionally saved Chong Heihu, turning hostility into friendship and forming a bond of life and death.

Chong Heihu's elder brother, Chong Houhu, one of the Four Great Lords, sent a messenger with a gift—a redwood chariot. This chariot can travel a thousand miles a day, passing through clouds and mist, a rare treasure in the mortal world.

Chong Houhu is one of the Four Great Lords in the mortal world. Although he is not a cultivator, he is involved in many karmic entanglements. Associating with him can be like snatching chestnuts from a fire, but you can gain some benefits.

You have established a superficial friendship with Chong Houhu, and you have gained the talent—'Seeking Advantage and Avoiding Harm.' Chong Houhu was able to become one of the Four Great Lords, and in the future, during the Investiture of the Gods calamity, when the killing tribulation befalls him, he will still know to bribe treacherous officials in the court and help King Zhou build the Deer Terrace. His ability to seek advantage and avoid harm is almost instinctive.

With this talent, you will have a vague sense of opportunities or dangers.

Looking at the prompts appearing on the system screen, Rhine didn't know whether to laugh or cry.

"The Nimbus 2000 became a redwood chariot? Okay, that's acceptable."

"But Draco Malfoy is Chong Heihu, and Lucius Malfoy is Chong Houhu?"

"System, you've messed up the generations."

However, putting aside the generations, it's quite reasonable for Lucius to be Chong Houhu.

The talent of 'Seeking Advantage and Avoiding Harm' is simply a portrayal of Lucius and the Malfoy family.

Although it's not very useful in combat, it might have miraculous effects at critical moments.

Rhine also examined the Restricted Section permit attached to the letter.

This is a Chan Sect token that Chong Houhu obtained by chance. There may be a connection to the Demon Cave, where demons are suppressed under the Jade Void Palace.

Please note that the demons suppressed by the Chan Sect under the Jade Void Palace are all rare and powerful demons from the primordial era, filled with baleful aura. The host's cultivation is too low. Going to the Demon Cave is a certain death!

Rhine's mouth twitched. He took a step, ignoring the system's warning, and walked towards the library.

When he reached the area of the library where ordinary students could borrow books, the words on the system screen were already turning red.

You have approached one of the forbidden areas for Chan Sect disciples—the outskirts of the Demon Cave.

A rolling baleful aura permeates from the Demon Cave, cold and stern, with the wails of immortals and gods. Please retreat immediately!

Rhine ignored the system, which seemed to have poor eyesight, and continued to walk forward.

The next moment, a figure stood in front of Rhine.

It was Madam Pince, the librarian.

She was looking at Rhine with a wary gaze.

"Stop."

"The front is the Restricted Section. That's not a place for a little wizard like you to enter. You need a note from a professor."

Outside the Demon Cave, a towering figure stands, exuding a stern aura, blocking your path.

This is an immortal guarding the Demon Cave for the Chan Sect. This immortal has a strange temper. He guards the Demon Cave all year round to prevent the Demon Cave from rioting.

Seeing that you, a junior disciple, do not know the power of the Demon Cave, this immortal has come to stop you.

Rhine took out the Restricted Section permit given by Lucius and handed it to Madam Pince.

"I don't have a note from a professor, but the Board of Governors issued me a permit."

Madam Pince was stunned.

The Board of Governors?

This institution only feels present when it's time to issue salaries. Otherwise, their existence is not felt at Hogwarts.

They actually issued a Restricted Section permit specifically to Rhine?

Could it be a forgery by the audacious Gryffindor lions?

But after checking it back and forth for a long time, Madam Pince revealed a surprised look.

This is actually real?

Rhine asked.

"Can I go in now?"

Madam Pince reluctantly nodded.

"Alright."

"But I must remind you that many books in the Restricted Section are alive. Some books contain very profound magic and are very dangerous."

"Also, it's very troublesome to clean up inside. It hasn't been cleaned for nearly a hundred years. Don't make it even dirtier!"

After Rhine agreed, he prepared to enter the Restricted Section.

But on the system screen, lines of information appeared again.

The guarding immortal recognized the token in your hand. According to Chan Sect rules, anyone holding this token, regardless of their cultivation level, can enter the Demon Cave to train, and even he cannot stop them.

Before leaving, the guarding immortal repeatedly urged you that the depths of the Demon Cave have not been swept for a hundred years. Some of the great demons there are filled with violent energy. If they are nourished by the flesh and blood of Chan Sect disciples, they will recover their vitality and be even more difficult to deal with. He hopes you will be very careful.

Although the guarding immortal is nameless, even the Twelve Golden Immortals respect him. If you can befriend him, it will be very beneficial.

It's just that this immortal has a strange temper. He doesn't care about cultivation, opportunity, or luck. He only values the ability to slay demons and eliminate evil, and he has dedicated his life to the path of slaying demons and eliminating evil.

Slaying a hundred demons in the Demon Cave will allow you to establish a superficial friendship with him, and you can obtain the talent—'Reversing Demonic Source.' With this talent, you can use the magical powers of demons to achieve righteous and magnificent effects, vast and mighty, and restrain evil.

Slaying a thousand demons will allow you to establish a close friendship with him, and you can obtain a reward—the Demon Refining Pill Formula. This pill formula was created by the guarding immortal. It uses strange demons as raw materials. Taking it can increase your cultivation, and the effect is excellent.

Slaying ten thousand demons will allow you to establish a life-and-death friendship with him, and you can obtain a reward—the Myriad Demon Golden Pill Formula. This pill formula was conceived by the guarding immortal, using a peerless demon king as the main ingredient and incorporating ten thousand demons. It will be very beneficial even to the Twelve Golden Immortals.

Rhine's footsteps suddenly stopped, and his heartbeat suddenly accelerated.

Befriending Madam Pince, the reward is good.

The 'Reversing Demonic Source' talent, using demonic magic to achieve righteous effects, could it be that I can use dark magic as white magic?

This feels a bit interesting.

But what excites Rhine even more is the pill formula that follows.

His 'Profound Alchemy' talent is lacking pill formulas to utilize. The level of the Flying Tiger Pill is still too low. If he can obtain the latter two pill formulas and refine the pills, Rhine's speed of strength improvement can also skyrocket.

But how to slay demons and eliminate evil in the Restricted Section?

Could it be that all the dangerous forbidden books should be burned?

Rhine thought for a moment and decisively rejected this idea.

Madam Pince loves books as her life. If he damages any precious books, let alone befriending her, she would probably become extremely angry and even fight to the death.

Then what does 'slaying demons and eliminating evil' refer to…

A moment later, Rhine's gaze fell on the duster in Madam Pince's hand, and his heart suddenly moved. He said.

"Madam Pince, you just said that the Restricted Section hasn't been cleaned for almost a hundred years?"

Madam Pince nodded with a painful expression.

"Yes, even the previous librarians couldn't enter the Restricted Section at will, so there was no way to clean it."

"Seeing those precious books covered in dust is too upsetting for me, but I certainly can't disobey Dumbledore's orders…"

At this time, Rhine also had a look of righteous indignation.

"Precious books covered in dust, it's simply too cruel for book lovers."

"How about this, Madam Pince, I have a Restricted Section permit. I can go in and help you clean."

Madam Pince looked at Rhine, her eyes immediately becoming excited.

"Really?!"

She quickly handed the duster in her hand to Rhine.

"If you can really help me clean the Restricted Section, I will be extremely grateful to you!"

On the system screen, a line of information suddenly refreshed.

Slay demons and eliminate evil, who else but me?!

Your remarks before entering the Demon Cave greatly touched the guarding immortal.

He took off the Demon Slaying Sword from his waist and gave it to you, hoping that you would kill more demons in the Demon Cave and uphold justice!