Substitute No More: The Sister They Lost
"You're our only sister now... Sarah, we'll definitely protect you."
I looked down at them and saw Sarah's hands trembling with excitement when she heard the words "only sister". They helped each other up and left. I merely watched them coldly.
Alright then. Now, everything was back on track. Now, the two brothers could fully enjoy their "deep sibling bond" with their real sister.
But for some reason, my soul still refused to depart.
…
After returning to the Sinclair residence, Sarah thought she had gotten away with it and slept peacefully. The next day, while she was sleeping soundly, her bedroom door was suddenly kicked open by Joseph!