Taruya Kohei was born in Beppu City, Oita Prefecture. He graduated from the Piano Course at Toho Gakuen College Music Department. He performed at the graduation concert of the college. Taruya won Third Prize at the 88th Music Competition of Japan. He won First Prize at the Toho Concerto Piano Competition in 2019. Taruya has performed in various concerts, such as the 20th anniversary and 21st Beppu Argerich Music Festivals, Kawai Lunch Time Concert in Omotesando, Bechstein Salon Concert produced by the President of Toho Gakuen, and Toho Gala Concert. He has performed with the Tokyo City Philharmonic Orchestra and Toho Gakuen Orchestra. Currently, Taruya studies in the soloist diploma course at Toho Gakuen as a scholarship student. He has studied with Murakami Genichiro and Numazawa Yoshito.