Tetsuya Hara

Hara was Shitenhōji's captain during Shiraishi Kuranosuke's 2nd year. He is known as one of Shitenhoji's Legendary Captains along with Taira Yoshiyuki who was the captain the year before him when Shiraishi and Oshitari Kenya were in their freshman year.

He is the captain that led Shitenhoji to the Nationals the year before Seigaku won. However for unknown reasons, Hara decided to retire from club tennis in the Spring of last year, meaning he didnt captain his team to that Nationals. He is currently a high school 1st year.

(Source: Prince of Tennis Wiki)