Kojirou Saeki
, 佐伯 虎次郎
The third-year student at Rokkaku High School named Saeki appears calm and gentle, but don't let his appearance fool you. Despite his relaxed demeanor, he's a highly skilled tennis player who possesses natural talent and above-average vision. This combination makes him a formidable opponent to face on the court.
Saeki is also Rokkaku High School's Vice Captain and was randomly selected by their coach like Aoi. Furthermore, he seems to have a close friendship with Fuji Shusuke, one of his teammates.
