“Black Bean, lower your voice, Shujun is taking her afternoon nap.”

As soon as she entered the room, Black Bean was making a racket, shouting loudly. Her voice was sharp and shrill, as loud as three ducks combined.

Upon hearing the nickname, Black Bean glared at her sister with mild displeasure. “Sis, can’t you call me Ning Xin? Why do you always use that name? I’m an adult now~”

“Adult, huh?”

Ning Chu glanced at Black Bean's chest.

Black Bean proudly puffed out her chest and placed her hands on her hips. “I am!”

She was wearing a fitted short-sleeve …