(The protagonist has the Omniverse Omnitrix, the one from Bad Ben, the Omnitrix is ​​left for Ben.)

My name is Klein Azeroth, maybe no one has heard of my name, but you must have heard of my younger cousin's name. His name is Benjamin Kirby "Ben" Tennyson, we call him Ben 10.

(The protagonist himself has his own special features, which will be discussed later. Therefore, the protagonist is almost invincible in the Omnitrix universe, but the protagonist will also grow in strength, not little by little, but in stages, such as the addition of the ultimate evolution function to the watch.)

All novels related to Ben 10 will be written, starting from the first season, and other novels such as the Error Watch (Carnitrix) and the Love Watch (Chaquetrix) will also be written.

[Light Yuri Warning: Those Who Dislike Entangled Relationships, Beware]

[Shido Becomes Shiori]

[I’ll Take Them All]

[The Protagonist’s Personality Gradually Changes]

I got isekai’d? Seriously, who even does the whole "transmigration" trope these days?

And a system too? Just a reskinned "Heroic Spirit System," huh?

But what kind of skills is this thing giving me?! What the hell does "Bishōnen Seducer" even mean?!

Tokisaki Kurumi: Ara ara~ Nanjō-kun, you’re just adorable, aren’t you?

Nanjō Saku: Who said this skill was useless? This skill is freaking amazing.

In the shadow of the green lantern, Carl tapped Voldemort's diary with a hook stained with evil despair.

"Poor lonely ghost, you are mine, come out and play, how are we going to carry out this pleasant torture?"

On the day when the owl delivered the Hogwarts admission letter, Carl was excited, but also glad that he did not choose "Harry Potter" when he copied books to make money. He was just one step away from biting into the special melon of Avada. After Professor McGonagall arrived, Carl discovered his talent (external plug-in): "Detect Minerva McGonagall, Animagus Transformation... Match Nidalee, Vastaya Xayah Transformation..."

It is understandable that they can transform into a cat, but why did Professor Snape match Viego? "Forever lost my love! Defeat with a single glance!

Qin Chuan accidentally traveled to the world of Collapse Iron, joined the chat group, signed in and obtained the remains of the dragon. Unexpectedly, this power contained the origin of the dragon, and he became the Dragon Lord of Luofu by mistake. Ailixia: I knew that Qin Chuan was the best to me, and I like Qin Chuan the most. Daci Tree King: I wonder if you, Qin Chuan, are interested in becoming my sage, or... the partner of a god? Kinomoto Sakura: When I grow up, I want to marry someone like Qin Chuan's brother. Feixiao: Qin Chuan, do you want me to show you how to do push-ups? Hmm? Face to face, of course. Qin Chuan racked his brains but couldn't figure it out. He just wanted to spoil the plot and save people from the beginning. Um, what are you inviting me to the basement for? Don't come over here! ! !

"Dumbledore, hasn’t he already graduated? Why is he back at school?"

"Oh, Severus, don’t be so nervous. He’s the new Defense Against the Dark Arts professor!"

"Damn it! If I catch him using a cauldron to cook hot pot at school again, I swear I’ll duel him!"

...

"You are the worst class I have ever taught!"

"But, Professor… isn’t this your first class?"

...

"Miss Granger, as the study committee leader, you’ll guide everyone to read by the Black Lake every morning."

"Mr. Potter, as the sports committee leader, after reading, take them for a run around the Black Lake!"

...

"The countdown to the O.W.L. exams is 100 days!"

"Break the cauldrons, sink the boats—fight for full marks on the O.W.L.s!"

Douglas Holmes, a Hufflepuff with an Eastern soul, returns to Hogwarts three years after graduation to apply for a teaching position—

and brings a whole new style to the school.