My Sister Doesn’t Have Dissociative Identity Disorder

After her jerk of a younger brother pushed her downstairs and she hit her head, Sang Pan learned that she was the cannon-fodder younger sister of a fake heiress. In the battle between the fake and real heiresses, she would be forced to miscarry and then jump to her death in despair.

Just as Sang Pan was reeling from the news, the fake heiress, who had always kept her distance, suddenly came to find her:

"Come with your big sister, sweetheart. We can't stay in this dump. I'll take care of you!"

[Ding!]

[Your golden finger, Sang Pan's Marvelous Little Universe, is now online.]

[Top Student Sang Pan has moved into Room 101.]

[Movie Queen Sang Pan has moved into Room 102.]

[Empress Dowager Sang Pan has moved into Room 203.]

[Delinquent Sang Huili has moved into Room 301.]

[Sword Cultivator Sang Pan has moved into Room 401.]

*

Reborn, Sang Yu swore to protect her twin younger sister and never again compete with the real heiress for the affections of a scumbag. But then she realized something seemed off.

Her sister and the real heiress were being harassed by a bunch of street punks demanding protection money.

Just as Sang Yu was about to call the police and rescue them, what happened next left her speechless.

Sang Pan tossed her schoolbag aside and knocked the punks down one by one. With her little boot planted on the ringleader's face, she asked, "Sorry, what was it you wanted from me?"

The punk struggled to get the words out. "Boss Sang, it's all just a misunderstanding..."

The real heiress: "So cool! My protagonist little sister is such a badass!"

Sang Yu: "???"

*

A corrupt, snobbish teacher said Sang Pan was a bad student and looked down on her poor academic foundation. Her awful parents immediately demanded that she drop out and attend vocational school.

Sang Yu was about to report them and arrange for her sister to transfer schools and classes...

Sang Pan took out her award certificate and prize money from a speech contest, then solved three sets of math and science competition problems in front of everyone. Finally, she announced that she really was transferring.

She was transferring to the competition class, and then on to the best high school.

The real heiress: "Let's go, let's go! Wherever you go, I'm going too."

Sang Yu: "Wait... Never mind, I'm coming too."

*

At an event at the new school, Sang Pan and the real heiress suddenly appeared on the program even though they hadn't signed up. A scumbag pretended to be generous and offered to invite the real heiress to dance.

Sang Yu gave a cold laugh and was just about to go onstage and perform for them herself...

Sang Pan walked over to the piano and played Winter Wind Etude, then picked up a violin and played Flight of the Bumblebee. Finally, she pulled out a prop sword from the martial arts performance group and muttered, "I might as well do a sword dance. This is easy."

The real heiress: "No wonder she's my sister. She's freaking amazing!"

Sang Yu: "???"

Sang Yu: "Wait, that's my sister!"

A friendly reminder:

* The fake heiress, the real heiress, and the younger sister are three best friends who'll stick together for life.

* Sang Yu is reborn, Sang Pan has a System, and the real heiress transmigrated into a book.

Theme: Saving yourself is the real answer.