あだち充
Hiroaki Serizawa (芹澤廣明 "Serizawa Hiroaki" January 3, 1948 - ) is a Japanese singer and songwriter. He has released albums under two other similar names: Hiro Serizawa (芹沢ヒロ and 芹沢 廣, both said "Serizawa Hiro"). He has released music for many Mitsuru Adachi anime series, including "Touch" and "Hiatari Ryōkō!"