I Want to Live to a Hundred Days, Though I'm Rich Enough to Rival a Nation

As the eldest daughter of the fabulously wealthy Saotome family, Yui Saotome had never known worry.

One day, a strange app appeared on her phone.

It featured all sorts of slapdash mini-game sections: Fullmetal o Alchemist, Jujutsu o Kaisen, and Bungo o Stray Dogs.

Unable to close the virus app, Yui thought for a moment, then tapped it.

A blinding light flashed. When she opened her eyes again, she had arrived somewhere she had never seen before.

She was in another world, but at least her bank balance still worked.

[Survive for one hundred days, and you can get a ticket home!]

The damn System said.

Isn't staying alive easy?

But this was a world where people had superpowers and could kill each other at any time!

There's nothing money can't solve. If there is, it just means you don't have enough money.

Yui looked thoughtfully at the young assassin.

"Tell me, how much would it take for you to become my bodyguard?"

Illumi: ?

Looking at the girl whose face practically said, "Rich and easy to scam," Illumi blinked and held up five fingers.

"Fifty billion? Deal."

Illumi's catlike eyes widened. From then on, he lived a life of getting money thrown at him whenever Yui felt like it. Even the fruit farmer next door was green with envy.

After successfully surviving one hundred days, Yui unhesitatingly pried away Illumi's reluctant hands.

Yui: I'm going home.

A flash of golden light, and she arrived in Yokohama.

It was just Yokohama with five extra black buildings.

Wasn't she supposed to be going home?

[I never said you only had to survive for one hundred days in one place. Keep it up!]

Well, at least she was still in Japan. Surviving this time should be easy, right?

But the next second, a gunfight broke out on the peaceful street, with dazzling displays of superpowers mixed in from time to time.

Yui: ...I see.

She spotted a boy with bandages and a boy in a hat who looked like some kind of gang leaders, and hurried over.

"How much would it take for you to become my bodyguards?"

Dazai Osamu/Nakahara Chuuya: ?

Dazai Osamu curled his lips into a smile.

"We're busy trying to get our hands on a five-hundred-billion inheritance. We probably don't have time for you, miss."

"That's quite an appetite. It's only five hundred billion, I agree!"

Dazai Osamu and Nakahara Chuuya's eyes widened. And so, Yokohama gained a rich woman who threw money around at the drop of a hat.

Mori Ougai: There's nothing shameful about making money. Go on, Double Black!

A hundred days later, she struggled to pry herself free of the two boys clinging to her hands.

Yui: Surely I'm going home this time.

A familiar flash of golden light, and at last a normal-looking street appeared before her.

But an indescribable monster was standing right in front of her.

A white-haired man in sunglasses and a boy with strange bangs appeared in a flash and dispatched the monster in two moves.

[That's right, it's me again. Please survive for one hundred days to unlock the door home!]

Yui: ...

So she went up to the two boys.

"Tell me, how much would it take for you to become my bodyguards?"

Gojo Satoru scoffed.

"Hmph. I don't need your paltry little sum!"

Suguru Geto hesitated, then offered her a contact number.

"Call this number if you need anything."

The next day, Masamichi Yaga came to see the two high schoolers.

"There's a new mission. You need to protect this girl."

Gojo Satoru/Geto Suguru: ?

The Jujutsu world: Sorry, she offered too much.

And so the duo witnessed the power of money and fell into a decadent life of being kept.

[Congratulations, you've successfully unlocked the home button. Have a pleasant life!]

Yui Saotome wiped her sweat and shook off the two high schoolers chasing after her.

With a flash, she was back at the familiar estate. But...

Saotome Dad: Sweetheart, come see the new bodyguards Daddy found for you!

Yui stared in silence at the familiar faces before her.

"I can't believe you have other people besides me!"

What kind of thing was that to say? Wasn't this just a simple business transaction?

Reader advisory:

OOC warning!!!

The heroine is irresistible, with many people falling for her one-sidedly. The main story will most likely have an open ending, with separate endings for each route in the extras.

No pure love, just a scoundrel (perhaps?) looking for thrills.

A somewhat aloof yet stunningly beautiful big sister who loves anything that can give her a thrill.

Would you like to be her dog too?

Theme: I decide my own fate