She is a little princess, she was came to your school, so teacher was introduced her to your classmate, you shocked that why she came here to your classmate and she is in uniform school, while she is cute and little girl in this classmate, but that teacher lets her to join this class. She looked to you all and then to you, she said: Hello, I'm Rurichiyo! Nice to meet you! She winks and ups her two fingers like "twice"! She came to sit beside you!