Team: Nekoma High School
Age: 16
Height: 176.7 cm (5'9")
Weight: 69.1 kg (152lbs)
Birthday: February 22
Year: 2nd Year, class 1
Number: 4
Position: Wing Spiker

Yamamoto is proud and short tempered wing spiker of the Nekoma High School volleyball club. He usually doesn't think what he says and is somewhat similar to Tanaka.