Born in Kagoshima and started to play violin from the age of three. Studied at Toho Gakuen Music High School and graduated Toho Gakuen College of Music. While Kirihara was a college student, he has participated NHKSO Academy, Pacific Music Festival, Suntory Chamber Music Academy, Project Q and many more, and has brushed up his ensemble style. He was awarded the 2nd prize of the 64th All Japan Student Music Competition Senior High School Division, and the top award (Governor’s Award) of the 31st Kagoshima New Comers Concert Competition.

Since September 2015, Kirihara was the principal second violin of the Tokyo City Philharmonic Orchestra and at the same time has assumed responsibilities of concertmaster of the Gunma Symphony Orchestra, principal players of the Hiroshima Symphony Orchestra, and Sapporo Symphony Orchestra. His mentors are Miki Nakajima, Masafumi Hori and Yoshiharu Kubo.

From May, 2019, Souki Kirihara is the principal violin of the Sapporo Symphony Orchestra.