Kousuke Iwana

A serious guy who got really into surfing in Shounan.

He was a former baseball player, but an elbow injury ruined his hopes for the sport. When he discovered surfing and how deep it was, he fell in love with it. Now he aims to become a top surfer, and has never missed a day of practice.

Ever since he came to know Yuuta, he has trusted him deeply.

(Source: Anime News Network)