The following is a list of characters from the series, S.A. The series focuses on Hikari Hanazono, a high school student who holds the second overall position at the elite Hakusen Academy, and her tireless efforts to challenge and hopefully defeat Kei Takishima, the first ranked student and Hikari's rival since childhood, while unaware that Kei is in love with her. Together, they form the Special A class, consisting of the seven top-ranked students of their school, along with their childhood friends Akira Toudou, Tadashi Karino, Megumi and Jun Yamamoto, and Ryuu Tsuji.