Natsuya Kirishima (Kenji Nojima) & Nao Serizawa (Satoshi Hino) - "Free! -the Final Stroke" Character Song Single Vol.6 Kirishima Natsuya & Serizawa Nao - Japan CDCredits: KIRISHIMA NATSUYA(CV. NOJIMA KENJI) & SERIZAWA NAO(CV. HINO SATOSHI),Kenji Nojima,Satoshi Hino Description: The Final Stroke" is now in theaters! Character song single series are being released one after another, and Vol. 6 features Natsuya Kirishima (CV. Kenji Nojima) and Hisashi Serizawa (CV. Satoshi Hino)! It contains two songs in total: one duet song created in their image and one common song sung by the characters who sing in the