dark buttercup transformation

I walked into the apartment with Miyako and Momoko. They were holding their sleeping bags, pajamas, tomorrow's clothes, and their backpack. We went into the kitchen. My mom was cooking dinner.
"Hey, mom! I brought Miyako and Momoko over for a sleepover." I told her.
"Ok, Kaoru, Miyako, and Momoko. 晚餐 will be ready in ten minutes." she replied. We 说 our thank-you's to her and went to my room. My 老友记 set their things on my bed.
"So, what do 你 want to do?" I asked them. They shrugged their shoulders. My mom came in the room.
"Kaoru, I invited the new girl to 加入 你 three. Is that...