Rin Eba

Itsuki's younger sister and Yuzuki's step-sister, who is a year older than her. She is quite fond of her older brother, and is irritated by Yuzuki, saying that she acts nice just for attention. She has also been known to tell lies in order to make Yuzuki upset. She seems to mischievous and loves to cause trouble. She shows a slight interest in Haruto.