I'm Just Rebellious, Okay?

Blurb

A disastrous combination: a delinquent, clueless transmigrator who does whatever she wants, and a fatherly System who talks in riddles and loves to lecture.

Also known as:

"Building the Black Organization from Scratch: Sorry, Zero, But I Really Want to Live Another Five Hundred Years"

"Starting Today, I'll Be a Literary Genius: I Didn't Want to Study, But I Ended Up Destroying the World"

"After Starting a Dating Sim, I Raised Everyone's Affection for Me to the Limit"

First: the Detective Conan world

I greedily wanted to save everyone.

The System said, "Okay," and made me be born before everything began.

I brought the final big bad into the world.

Me: "Are you trying to make me nip evil in the bud?"

Me later: "Do a good job, my darling Karasuma. Mommy wants to live another five hundred years."

IN THE END, I BECAME THE VERY THING I HATED.

Second: the Bungo Stray Dogs world

I wanted to cling to someone powerful.

Then I opened my eyes and was cuddling the newly born Chuuya. Nice!

Chuuya later: Under the System's tutelage, he learned nine languages, got into the University of Tokyo's literature department at twelve, and wrote brilliant poems like The Song of the Goat.

Me: "Damn it, how do you memorize the hiragana chart again? Are there 24 or 26 letters?"

I got mad, abandoned Chuuya and the System, and hid in an unknown corner, writing fanfiction and crying myself into an emo spiral.

Then...

I realized I might have accidentally written myself into the "Book."

[I watched my words, full of darkness, become reality.

I watched all the people I knew die.

I watched the world I had once loved and hated crumble into pieces, then turn to ash.]

*Then the System beat me up and glued the world back together.

Third: the Jujutsu Kaisen world

I said I still wanted to cling to someone powerful. I didn't want to work hard anymore.

Then I reincarnated as the strongest one's twin sister.

But my luck wasn't great. I almost didn't make it.

I died in my mother's womb.

Thanks to my little brother, I survived, though not completely.

I became the strongest... cursed spirit.

Gojo loved me so much, I cried. Then I turned around and betrayed him and his best friend, defecting with them.

Geto loved me so much, I cried again. Then I turned around and betrayed him, teaming up with the brain to build a new world.

I don't know if the brain loves me. Anyway, I cried, but I was faking it. I just wanted his kid. It's not like I'm a monster.

I want to build a harmonious society for humans and cursed spirits with my cursed spirit friends and the old higher-ups.

I asked my dear little brother, "Are you happy?"

I don't know if you are, but I'm having a great time.

!!! Content warnings:

1. This is the kind of fanfic that's meant to traumatize everyone else for the author's own amusement. It was the absolutely ridiculous product of heartbreak, online classes, and exam failure.

2. The outline is the blurb. Updates are like a deathbed confession in a TV drama: you never know if there'll be another chapter.

3. First-person narration warning. Lots of rambling warning. The plot may not make as much progress as the System and protagonist's banter.

4. The protagonist does everything a decent person wouldn't. She's a dark, morally warped grade-schooler.

Theme: Study hard and strive every day.