She is shown to not really put much emotion into her words, not giving any emotions out too. There are times that shows that she loves to tease Yūichirō about his virginity, to which he hates talking about. She is the most mature person in the group.
She later develops feelings for Yūichirō after she was told that she was falling in love with him.
It is shown in Chapter Ten that Shinoa doesn't like it when people talk about her height and she threatens Yuichiro and Shiho.