Crossover Anime: I'm at Shuchiin Academy, and my surname is Uchiha.

Chapter 253 I'm sorry, I couldn't make you use your full strength.

Madara is the name of the Nyanko-sensei (cat teacher) yokai. Uchiha Ryo once asked Nyanko-sensei about his past out of curiosity.

Although the other side stammered and said a few words, both Uchiha Ryo and Natsume could roughly guess some of Nyanko-sensei's experiences.

Nyanko-sensei claims that at his peak, he was also above the great demons and had come into contact with demons in the realm of gods.

However, it was sealed into the body of this lucky cat fifty years ago, and was only recently rescued by Natsume by accident.

However, the seal was only partially lifted. Although Nyanko-sensei regained his freedom, his demonic power could not always maintain his original form, so he could only continue to use the form of this three-colored lucky cat.

Uchiha Ryo watched the two demons quietly. Nurarihyon and Nyanko-sensei seemed to know each other. Perhaps he should ask this Nurarihyon about Nyanko-sensei.

Nurarihyon: "Hahaha, you're something else! Madara, the Demon Fox from back then, has actually been sealed away for so many years, and his strength has become so weak... I told you to join the Nura Clan long ago, but you wouldn't listen! If you had joined, none of this would have happened!"

The cat teacher bristled: "You slippery bastard, what right do you have to talk to me like that? After Hagoromo Gitsune ripped out your heart, your lifespan and strength have decreased by more than half, haven't they? You've aged like this in just five or six hundred years... Does the Nura Clan still have anyone who can fight?"

Nurarihyon scoffed, "I'm enjoying my retirement in Tokyo, and my grandson is almost grown up and ready to inherit the family business. Meanwhile, that certain spotted fox, not only was it sealed away as a cat, but what's it doing now? Has it become someone else's shikigami?"

Nyanko-sensei frowned. Uchiha Ryo didn't care, but he didn't intend to expose Natsume's affairs. After all, Natsume was just an ordinary person, and he didn't want him to be associated with the Nura Clan.

"Hey! Uchiha brats, keep fighting! Hurry up and teach this old man a lesson!"

The cat teacher ran over and sat down next to Yanyun-chan, waiting to watch the show together.

Seeing that the two had stopped chatting, Uchiha Ryo took out a kunai from his pocket.

"Commander-in-Chief of the Yokai, shall we continue?"

Nurarihyon also turned to look at Uchiha Rin, "I couldn't be happier!"

The kunai in his hand slowly raised its head, and Nurarihyon also raised his short sword.

In an instant, the kunai in Uchiha Rin's hand shot out and pierced Nurarihyon's throat.

But in everyone's sight, Nurarihyon vanished from the spot like a cloud of ink-wash style black mist.

Yanyunjiang: "Why did that guy disappear?"

Teacher Cat glanced at Yanyun-chan and suddenly laughed.

"By the way, you and this Uchiha brat are not practicing the system we know, so it's normal that you don't know about the fear of demons."

Yanyunjiang: "What...is that?"

"It's meowing," the cat teacher said calmly.

In this world, any powerful monster is born with the ability to inspire fear, which represents people's awe or reverence for it. This is a power inherent in monsters themselves.

After all, being a yokai inspires fear, awe, or respect; that is the essence of a yokai's existence.

For example, monsters that were born from human beliefs will also disappear once the people who believed in them are gone.

The principle of fear is similar; those monsters that are born to be remembered and feared are great demons like Nurarihyon.

Yanyun-chan nodded. "Oh...so the competition between you monsters is a contest of 'fear'? Not a contest of demonic power?"

Nyanko-sensei rolled his eyes. "Idiot, demonic power and [fear] are both indispensable. They are both the power of the demon itself, and both abilities can affect the battle."

Yanyun-chan: "I understand... (I'll go back and ask my master.)"

Nyanko-sensei: "Hmph, the 'fear' of Nurarihyon is like a mirage, where the body and attacks are both fake and real, making it impossible to distinguish, like the moon reflected in water, blurring the lines between truth and falsehood so that you can't react effectively."

Uchiha Ryo stood in the center of the deck, his Nurarihyon attacks and figure seemingly reflected in a mirror, like a flower on water, or the moon floating on the surface. But against the Sharingan, which could see through all illusions and deceptions, it seemed... to be of little use.

Uchiha Ryo blocked Nurarihyon's first slash and began to ponder Nyanko-sensei's explanation of "fear".

The demonic power and fear of monsters... can actually be compared to Haki and Devil Fruit abilities in One Piece.

Demonic power is the most basic thing for every demon; all demons possess it, just like domineering aura.

【Fear】is special; monsters possess their own 【Fear】, much like the power of a Devil Fruit.

However, there are also differences. For example, the fear of Nurarihyon can be inherited through bloodline, so this can only be explained in general terms.

The Nurarihyon's fear is very strong. If you encounter him for the first time, or if you are someone who cannot see through his true nature, you may be seriously injured by this cunning assassin.

However! [Fear] is like a Devil Fruit ability; it can be countered.

To borrow a phrase from Teacher Kai, only domineering spirit (one's own hard power) can transcend everything in this world.

However, even if his eyes could catch the figure of the other party, Uchiha Ryo could not guarantee that his body could keep up with the speed of the monster.

Nurarihyon flashed into mid-air in front of Uchiha Ryo, his blade flashing, and mercilessly slashed at the boy's neck with the Mirror of Still Water - Slash!

In terms of speed and combat experience alone, Uchiha Ryo is indeed no match for this great demon who has lived for over a hundred years.

But facing the impending killing blow, Uchiha Ryo snorted coldly and stood there without dodging or avoiding it.

Amidst a spray of blood, Nurarihyon's chest and thigh were simultaneously slashed with deep, bone-revealing wounds.

How could this be? Why was it me who was just attacked? A look of horror suddenly appeared on Nurarihyon's face, not because of the two wounds he had been slashed, but because of the black skeleton wrapped around Uchiha Rin.

And... chakra arms extending from both sides of the skeleton, with a long, dark sword on each arm.

Since the speed of monsters is beyond the reach of human bodies, why not just prepare a full-body defense and counterattack the moment the opponent attacks?

This was, after all, the Shinomiya family's cruise ship, which is why Uchiha Ryo didn't use any area-of-effect ninjutsu, but instead opted for close combat. Otherwise, this ship would probably have sunk with just one fire jutsu.

The second round of the battle was about to begin. Nurarihyon looked at the black skull that covered Uchiha Rin's entire body, but smiled and sheathed his short sword.

"Ah, I'm really no good now. I'm sorry I couldn't get you to use your full strength."

Uchiha Rin did not retract Susanoo, but said with some surprise.

"Mr. Nura, you're too kind. This is the first time I've ever seen someone use an ordinary weapon to slice through Susanoo."

Unlike that idiot who used a kunai to stab Susanoo, Nurarihyon's slash just now, even if Uchiha Rin instantly released Susanoo, still managed to cut a gap in it.

Although the gap is less than half a meter, Uchiha Ryo's eye power will restore it in a short time, but this old fox may not have used his full strength.

But... so what if you didn't use your full strength! You can cut through Susanoo that's half a meter or even a meter long, so what about ten meters or a hundred meters long!

Uchiha Ryo retracted his black skeleton. "Now that the sparring is over, please inform me of Isobu's information and location, Nura-san."