Sharp Instincts (Yandere! Homicidal Liu X Female! Reader)

『 ᴛʀɪɢɢᴇʀ ᴡᴀʀɴɪɴɢ: ᴅᴇᴀᴛʜ, ʙʟᴏᴏᴅ, ᴅᴇᴘʀᴇssɪᴏɴ, ᴇᴛᴄ. 』{Spin-Off of You're A Sharp One! You're the sister of the first book's reader!}
You stood in the middle of the mansion, silence filling the room. It seemed that all eyes were on you, even your sister's and her boyfriend's wide eyes. "How could you?" you whispered, tears streaming down your face. "How could you have made me think that it was my sister all along?"