Satoko Hojo

From Animepedia

Her parents died after an accident(or the curse as some assumed). Her brother Satoshi mysteriously disappear without a trace. She currently lives with Rika. She is a younger classmate in Keiichi's school. She has a distinctive style of speech, ending all of her sentences with ~wa which, at times, is grammatically incorrect. In spite of her young age, she really is quite clever in setting up traps. Although her personality is quite energetic and mischievous now, she had lived an awful past which still haunts her to this day. She dislikes Kabocha, and cannot tell the difference between cauliflower and broccoli.