My Younger Sister Is the Only Normal Person in the Family

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2

When I opened my eyes again, I found myself in my bedroom from my sophomore year of high school.

The reason I was so sure was because of the awards on the wall that hadn't been torn down yet.

That year, my sophomore year, I was diagnosed with a severe mental illness. When I had an episode, my grades plummeted, and the awards plastered on the wall became a source of immense frustration for me.

Every time I had an episode, I would tear an award off the wall.

First Prize, Grand Prize, Math Olympiad Award...

The wall, once completely covered in awards, was eventually stripped bare by me.

And just like that, I went from being a top student in the Honors Class to a "lunatic" who didn't even take the college entrance exams.

In my past life, I felt an immense amount of guilt toward my younger sister.

I hated myself. 'Why did I have to have a mental illness and drag my sister down?' But seeing that wall full of awards again, only one thought filled my mind.

'I was supposed to have a bright and promising future!'

DING. [Congratulations, Host. You have been bound to the Conquest System.]

A mechanical voice rang out in my head.

Although I had never heard my sister's System's voice in my past life, the moment this one spoke, I was almost certain it was the same one she had.

Sure enough, the next second, when the System announced the conquest target, it was the owner of the villa my sister lived in during my past life: Rhys Hawthorne.

At that moment, my feelings were complicated beyond measure.

[To help the Host complete the mission as quickly as possible, the Host may make changes to their family based on the conquest target's preferences.]

The System displayed a friendly tip.

But as I stared at that line of text, I felt a throbbing pain in my heart.

I couldn't even believe my own eyes.

My family's tragedy in my past life was all because the System said, 'You can change your family according to the conquest target's preferences.'

The System didn't provide any specific preferences, only that Rhys Hawthorne disliked "perfect" personas and that a resilient, independent character was more likely to awaken his protective instincts.

"'Can I choose not to change my family?' I asked the System."

I wasn't my sister. I couldn't bring myself to use such despicable tactics against my own family.

[Yes. As long as the Host successfully conquers The Heir of Argent and completes the mission. Friendly reminder: if the mission is not completed, the Host will be completely erased by the System.]

I now completely understood the System, and my own situation.

'In other words, as long as I find a way to complete the conquest mission, the System hasn't predetermined my family's fate.'

'And ten years is enough time to try many different approaches.'

But if my memory served me right, my family's tragedy in my past life began right at this very moment.

My sister didn't even hesitate to turn on her own family.

'Is she really my sister?'

'Even an animal wouldn't treat its own family like this.'

I felt a rage building in my chest that I couldn't suppress.

I wanted to find my sister, to see if that seemingly innocent and adorable girl was actually a monster in disguise.

But what I didn't expect was that when I left my room, I saw my sister in a corner, whispering furiously.

"System! Get the fuck out here! Didn't you show up at this time in my past life?"

"So you're hiding from me now, huh? Without my help, do you even want your damn KPIs anymore?"

She muttered and cursed under her breath.

This sister was a world apart from the sweet, obedient girl in my memories.

'Maybe some things don't even need to be asked.'

A person's true nature is clearly revealed in their words.