羽加道 秀明

Hideaki is Shizune's younger brother, who looks very much like her and has a similar personality too. It also has to be noted that he dresses and looks like a girl.
He and Shizune are actually Lilly and Akira's first cousins, which makes Shizune and Lilly's rivalry even deeper.

He is the polar opposite of Akira the first cousin in short words.