My Childhood Friend Tsunayoshi Turns Out to Be My Nemesis

[The alternate timeline is underway and updating; the future arc is being revised (I will definitely work hard to get it online!). Chapter comments are open, anti-piracy is enabled at 60%, and the author's note for Chapter 91 is a birthday special]

Nishinomiya Shaoyao, an unlucky middle schooler who got hit by a stroke of good fortune while walking down the street, was chosen by the Mary Sue System.

According to the original script, she would painlessly transmigrate to another world and fall into a love-hate relationship with her destined male lead, the Tenth Vongola Boss, whose family had a blood feud with hers. After a string of melodramatic "I hate you, but I love you" incidents, they would reach a happy ending...

Shaoyao: Seriously, that's so tacky!

But when she drew her golden finger, a huge accident suddenly happened! The Mary Sue story instantly turned into a survival game. Burdened with debuffs from head to toe, she decided to rebel. She would form a student council with Tsuna, another unlucky kid she'd just met at Namimori Kindergarten, and fight back against this bizarre world together!

Shaoyao: That long thing in your hand, the one that makes a huge bang when you light it, it's a firecracker... right?

Is there no law at all! In this cold, cruel world, the safest place is still by my childhood friend's side!

But...

Shaoyao: What! The dignified Tenth Vongola Boss is coming after me, a middle schooler? Is he even human? I'm getting out of this hellhole tonight... Tsuna, run away with me!

Tsuna: Σ(-囗- ;) Huh? Wait!

Shaoyao: Or do you want to help me hack this guy to death!

Tsuna, the real Tenth Vongola Boss: Σ(òДó|||) I think there must be a way to solve this...

A few things to know before reading:

1. CP27. The heroine starts out as a 60-kilogram kindergarten brat, and only manages to slim down after the return of her unrequited love.

2. The heroine's personality is especially stubborn and slow to catch on because of the System.

3. This is a sweet romance!! A melodramatic amnesia incident happens later in the Future Arc.

The alternate timeline is now underway:

"Do Good-for-Nothing Teenagers Dream of Rebellious Beauties? [Reborn!]"

An ordinary world with no superpowers and no System, where everyone is a little messed up. The heroine becomes an invisible person who kicks a cripple's good leg (just kidding...).

Alternate-timeline work in progress:

"How to Capture the Tenth Vongola Boss [270 Reborn!]"

To save her family, the heroine decides to infiltrate the Vongola and kidnap the Tenth Boss. The first thing she does is drug his drink.

Other works in progress:

"The Demon Slayer Corps' Old Farmer's Tale [Demon Slayer Crossover]"

All fifty of my cranberries were ruined because I transmigrated!

"How to Tame a Husband [JoJo's Bizarre Adventure]"

A bad life turns a good woman bad. She only made the same mistake every woman in the world would make.

Theme: Even if things go terribly wrong from the start, never give up!