Ayahi Takagaki is a Japanese actress and singer. She had her first major voice acting roles in 2007, voicing Jasmine in Deltora Quest and Lucia Nahashi in Venus Versus Virus. Her career as a musician began with her performance of the opening themes of the anime series First Love Limited in April 2009. In the same month, she and three other voice actresses debuted as the musical group Sphere with their single "Future Stream". She announced her marriage on her blog on August 22, 2019.