Jun Yagami competes as a badminton doubles specialist for the Unisics team, partnering with Ryo Natsuki. He possesses black hair, violet eyes, and a height of 1.74 meters, with blood type A. His birthday falls on September 12.

Yagami and Natsuki forged their partnership during high school, where Natsuki was one year his junior. Their collaboration transcends tournaments, extending to a shared YouTube channel featuring match broadcasts and badminton content.