Family: Grandparents, Parents, older sister, younger sister

Position: Centerfield

Throws/Bats: Right/Right

Uniform number: 8

D.O.B: May 14

Blood type: O

Height: 172cm

Weight: 64kg

Yamanoi is an easy going guy and cool under pressure. He has a good sense of humor and teases Junta. He is Tosei's centerfield.