[Crossing over + becoming a cat + pseudo-antithesis + single CP Hermione + warm daily life]

Original title: "The Secret Black Cat of Hogwarts". The protagonist is not a saint, and the IQ of all the characters is basically online.

The Oriental Black Cat brought mysterious power into Hogwarts. There are so many ghosts in the school, I really want to eat one, the Dementors taste very good, Voldemort is the main meal, there is no escape!

Centaur: The end of the bear, the destroyer of herbs, the nemesis of the eight-eyed giant spider, the ominous darkness...The Mars tonight blinded my eyes.

Draco: He is a true aristocrat! What an elegance!

Simo: shepherd of lost lambs, ferryman of the sea of ​​soul, life mentor, pioneer of art.

Macon: I'm a regular little black cat.

Voldemort: Great! I am beginning to understand everything!

Harry Potter:

[Single female protagonist Hermione + mainly based on the movie plot, later plot changes + system]

Kevin traveled to the world of Harry Potter and grew up in an orphanage without ever coming into contact with magic. It was not until he was 11 years old that he finally received the admission letter to Hogwarts.

Reborn, he just wants to enjoy this magical journey, but as time goes by, he can't help but get caught up in it...

- - - - - - - - - - - - - -

Snape: Kevin? Humph! Just a cocky brat with a bit of talent.

Dumbledore: Kevin is such a good boy who would go to great lengths to help his friends.

Voldemort: Kevin, this unethical and despicable villain! He has attacked me with a crowbar every time I die!

He was at Hogwarts, and had just become a Half-Blood Prince.

[Parent-generation; multiple female protagonists; no system]

…

In 1976, 16-year-old Severus Snape welcomed a new life.

That year, Voldemort had not yet split his soul into seven pieces.

That year, Nagini was still hiding in the forests of Albania.

That year, Pandora was still doing wonderful experiments at Hogwarts.

That year, Ms. Rosmerta was in her prime and very graceful.

That year, Snape decided to experience this wonderful world.

The labyrinth city of Orario—a vast metropolis encompassing a magnificent underground labyrinth (commonly known as a "dungeon"). The thrill of the unknown, the glory of splendor, and even a romance with a lovely girl. In this city where dreams and desires lie in wait, a young boy encounters a small "god." Rejected by all the "families," the boy, determined to become an adventurer, encounters a fateful encounter with a god with zero members. This is the boy's trajectory, the goddess's record.

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!

Travel through Naruto and activate the harem skirt. All the women who enter the skirt will be his future harem.

Every day, you can make up a future video related to the skirt members, and the video will become true.

Mu Mu: So, if you want a certain ability, just make it up? If you want a certain woman, just make it up?

then–

Konoha Shika: What? We are going to marry Mu Mu together. What is his merit? … He is the hybrid of Senju, Uzumaki and Uchiha, and he has activated the three bloodlines at the same time. He is also the sixth Hokage! That’s fine. We are willing to marry him!

Xiyan: Jifeng is a tuberculosis patient, I like people who are strong and healthy!

Xihi Kurenai: Mumu is too manly, and that cannot be decorated with a beard.

Hongdou: Marry Mumu and you’ll have endless meatballs to eat. That’s great!

Tsunade, Mei Terumi, Kurotsuchi, Samui…

As one after another entered the skirt, everyone gradually became dumbfounded.

Is this a way to capture all the beauties in the ninja world? Are his kidneys made of alloy?

Kushina, Mikoto, Nohara Rin, Uzumaki Mito, Uchiha Ji…

Unexpectedly, even the dead were not spared? !

Servant Lancer Remlia Scarlet... Queen of the Night, reigns here. From now on, I will be your master, servant, are you type B blood?"

"Servant Saber Akame, in response to our previous meeting, nice to meet again, Master."

"Archer Misaka Mikoto, eh, do we know each other? Hey, hey, hey! Master, your pick-up method is too old-fashioned."

"Servant Saber, I came here in response to the summons. Well, just call me Kirito."

"Servant Archer, my name is Tokisaki Kurumi. Ah, Koizumi-kun, we are also an accomplice who saved the world together. Why are you hiding from me like this?

The singularities that have been determined so far are:

First singularity: Prosperous Illusionary Empire · Imperial Capital

Second singularity: Land of Death-Inducing Nightmares · Westward Journey

Third singularity: Day of the Fall of Pure Thunder · Academy City

Fourth singularity: Day of the Awakening of the Crimson Devil · Romania

Fifth singularity: When the Swords Sonate · SAO

Sixth singularity: All Worlds Gather · Different World

Seventh singularity: Glow of Fallen Stars · Midzilda

Bai Chen, having just traveled through time, hadn't figured out what was happening when Siegfried usurped his throne. Expecting to bring shame upon the other traveler, Bai Chen suddenly heard a voice. "Chat invites you to join, yes or no?" "I'm dying, why are you here just now?" Huh? There's also a lottery feature? ... Tokisaki Kurumi: "I'm not allowed to post cards here. Thank you for your cooperation!" Bai Chen: "I just got this, newbie. Does it work?" Misaka Mikoto: "Damn you, stinking seal! I told you not to post your face!" Esdeath: "Seals don't matter, Bai Chen, will you be my boyfriend?" Bai Chen: "Huh?! Do I have a bright smile?" Makima: "Bai Chen, will you be my mistress?" Esdeath: "?" Matou Sakura: "Big brother is mine!" Shinobu Kocho: "Bai Chen-kun, you promised me you would take on the Demon King!"...

[Illyasviel completes the sign-in and is rewarded with a 1cm increase in height.] Illya: "???" [Tokisaki Kurumi completes the mission and is rewarded with a video of Tokisaki Kurumi's dark history. Please accept it!] Tokisaki Kurumi: "???" [Fate Testrosa completes the mission and is rewarded with a full set of Takamachi Nanoha's friendship bombardment flow!] Fate: "???" [Shirai Kuroko completes the mission and is rewarded with a lunch box of Misaka Mikoto's love!] Shirai Kuroko: "......!!!" Chu Chen silently watched these system hosts, who were mentally broken by the system he created, and drank his tea very calmly. "Your rewards are really not my fault. I'm only responsible for making and delivering the system. You blame me for being so cruel..."