The young girl Shanshan was originally the best candidate for the new school student council president. Not only was she good at studying and good-looking, she was also born into a noble family! But what reason or person made Shanshan give up her dream position? But the most important thing is: this is not a simple thing, even the school is not normal, a "mysterious + terrifying" campus that almost no one knows about! ! Why do daddy and mommy who "love their daughters like crazy" put us sisters in such a terrifying place? There are too many secrets~~No! ! My sister and I still hope to be a good homebody!