Hideyuki is Kaori’s beloved older brother, and was Ryo’s partner in City Hunter before his death. Before he could tell Kaori a secret about her past, namely that she was found abandoned by Hideyuki’s father and adopted, he was fatally wounded and later died in Ryo’s arms. Hideyuki’s final request was for Ryo to take care of Kaori.Though he’s killed off fairly early in the series, he is mentioned often, and his grave stone is even used as a plot twist in the final anime series.
