[Slytherin][Hermione is the only female protagonist][More rigorous: After living in another world for ten years, the protagonist barely remembers a little about Harry Potter][Not a system]

The false devil:

Gather the Saints to fight against the Muggles.

Occupy Britain and attack the school.

The real devil:

Destroy the world and cause great suffering to all living beings.

Elias traveled through time for eleven years and suddenly found out that he had traveled to the world of Harry Potter and was chosen by the bloodline of the devil!

You only need to gather three of the seven deadly sins: pride, wrath, laziness, greed, envy, gluttony, and ecstasy, and the power of the devil in your blood will automatically summon the devil to possess you and destroy the world!

For the peace of the world,

From that day on, Elias knew that his idle life would be gone forever...

Having unified Britain and established the Fairy Kingdom, Shirou returned to Japan in 1993. "Fuyuki, what a peaceful city..." Shirou thought he could live out his remaining years in peace, but then he encountered an unexpectedly familiar figure. "Morgan!! When did you get here?" The blonde girl exclaimed, "Just now some madman mistook me for Joan of Arc, and now... how are you going to confuse me with my sister? I'm King Arthur!" Shirou scoffed, "Laughable. You're King Arthur? Then who am I?"

"Do you know the correct way to use the Mystic Eyes of Death Perception?" "Precise attack lines and points?" "No, no, no~~~" The young man waved his hand and pulled out a rocket launcher from the cello case on his back... This is a story that singles out high schools from various anime and game works, focusing on battles, "romance," battles, dark sides, pseudo-daily life, true apocalypse, and mutual sabotage. These include, but are not limited to, *Private Fujimi Academy*, *Jinshiro High School*, *Private Ashford Academy*, *Koh Academy*, *Mahora Academy*, *Totsuki Academy*, *Tokiwadai Middle School*, *Nagatoshi Academy*, *Prefectural Misaki High School*, *Homura Academy*, *Sayanan High School*, *Toyonosaki Academy*, *Private Paradise High School*, *Crows Zero*, *Toudou Academy*, *Shohoku High School*, *Karakura Daiichi High School*, *Ouran High School Host Club*, and many more. Can you recognize which works these high schools are from?

He traveled through time to become the Hokage of the same class as the Fourth Hokage, brought with him the Bankai Lottery System, and accidentally became the biological father of Naruto and Sasuke?

Original creation plus fan fiction presents a different Naruto world.

When Uchiha Yoichi traveled through time, the style of the ninja world became distorted.

[Picking the sheep with ease]: When in contact with others, randomly take away an item from the other person's body.

Tsunade: Where are my clothes? Why did the shoulder disappear after being put on it?

[Two-way perspective]: Nothing can block your sight, but when you stare into the abyss, the abyss is also staring at you.

Uchiha Mikoto: Have I awakened my Byakugan? Why can I see Yang Yijun's...

[Dance Invitation]: After the BGM sounds, you have an opportunity to initiate a dance. The other party cannot refuse. The winner can randomly get an item from the other party.

Uchiha Madara: Bastard, the dance I am talking about is not a fighting dance, and where is my samsara eye?

————————

Uchiha Yoichi: Let me reiterate, it is the ability that is abnormal, and it has nothing to do with the user. I am a serious person!

Suddenly, a beautiful silver-haired girl appeared before him. She said he'd awakened the ability to "slip," and she wanted to take him away and protect him. She also wanted him to transfer to Hoshi no Kai Academy. Wait, isn't this silver-haired girl Nao Tomori? Aren't there more than just Kaguya-sama: Love is War, Quintessential Quintuplets, and Charlotte here? ... Fortunately, he's no pushover. His abilities aren't limited to the one he got from "In Another World with My Smartphone"—slipping—but he also has abilities from "Cooking Master Boy" and "K"... (Are daily battles 50-50? Quintessential Quintuplets and Kaguya have everything. Conan's behind-the-scenes boss is exactly as some experts had guessed. I'm impressed!)

He transmigrated to Konoha and became Naruto Uzumaki, the male protagonist of a dark fantasy novel.

Just as Naruto was planning to use his foresight to secretly develop his strength.

The fruits of the forest descended.

I'm not pretending anymore, I'm laying my cards on the table.

Wood Release? That thing requires hand seals? Isn't it supposed to be something you just summon by shouting?

They can absorb nutrients using the fruit of the forest forest.

He absorbed Uchiha Shisui and gained the Sharingan and genjutsu abilities.

On the night of the Uchiha clan massacre.

On the left is the Root organization, and on the right is Obito Uchiha and White Zetsu.

Wood Clone Naruto: "You guys are here to buy goods too?"

The Fourth Shinobi World War?

Before the battle, White Zetsu said, "Don't worry, how could I, White Zetsu, possibly betray you?"

The Power of the Forest —

White Zetsu: "Naruto-sama~ Kabuto and Obito are hiding there! Awooo~!"

...

Hiratsuka Shizuka: "I say, Gokawa, you don't have any friends, do you?" Gokawa Shidou: "But I have a lot of Pokémon!" Kasumigaoka Utaha: "Shidou-kun, go on a date with me!" Gokawa Shidou: "Sorry! I have a girlfriend, there's no place for you, senior..." Eriri: "I heard you're writing a novel, it's not impossible for me to help you draw illustrations..." Gokawa Shidou: "No need! Nia can do it for me!" Yukinoshita Yukino: "Aren't cats cute!" Gokawa Shidou: "I prefer *, especially origami-like ones." Nakano Satsuki: "I... I'm a big eater!" Gokawa Shidou: "How about competing with Tohka?"

[Momonosuke must die, the deserter king must die, kill the Celestial Dragons, collect supernovas, don't lick King Luffy, multi-ability person]

The veteran pirate fan Kuchi, wearing One Piece, met Robin by chance and discovered that he could possess seven devil fruit abilities at the same time.

So he ate the Quick-Severing Fruit, cut off an island with one strike, and competed in swordsmanship with the world's greatest swordsman.

He intercepted the Ghost Fruit, became the Ghost King, and competed with the Four Emperors BIG MOM in soul power.

He plundered the thundering ability, gained the fastest speed in the world, and competed with the Navy Admiral Kizaru in speed.

He forcibly snatched the artificial Blue Dragon Fruit and fought against Kaido and his two dragons in the sky above Wano Country.