After the Sister of the Real and Fake Heiresses Awakened

I'm the wicked older sister in a story about the real and fake heiresses.

Watching them fight day in and day out gives me a headache.

"The two of you got less than 500 points combined across seven subjects? If your grades don't improve, you're both out of the Chi family!"

Our little brother trembled beside us.

"If she scolds them, she won't scold me!"