I have a younger sister.

Her name is Qin Jiao, she is a robot.

When she was ten years old, she was born into this world. The first words she spoke were "big brother."

When she smiles at me, I feel like I'm seeing a monster that devours people, with a human appearance but lacking human emotions.

Everyone says she is my sister, but I know she is not.

My real younger sister disappeared when she was two years old and gradually forgotten by everyone as time passed.

I'm afraid that one day I will forget her too, so I insist on not acknowledging Qin Jiao.

Even though I know she is just an innocent child.

She is very good at pleasing people.

Perhaps it's the instinct of a robot. She was born to rely on me. When she can't find me, she cries loudly, chases after me and demands that I hold her. When she falls and gets hurt, she doesn't want Dad to apply medicine. She wants me to do it.

But I'm not good to her.

Dad says she is my exclusive robot and will not disobey my commands.

So, under malicious influence, I say to the innocent Qin Jiao:

"Robots don't feel pain."

A look of confusion appears on her tender face, and it takes a while for her to choke and reply,

"Hmm, big brother, I'm not afraid of pain."

As I watch Qin Jiao wiping her tears while bleeding, a sense of wicked pleasure arises in my heart.

I think, it's because of your insistence on coming.