Masanori Ito is a Japanese music critic and radio personality, also known as Seisoku Ito and Masa Ito. His work is specialized in heavy metal and hard rock, and he is known as the leading music critic of Japan. He has been quick to introduce new heavy metal bands to Japan, through writing for magazines such as Burrn! and putting them on the air. Ito wrote the initial story draft of the 2022 film Hagane Iro no Sora no Kanata he (鋼音色の空の彼方へ), based on the story of Japanese thrash metal band Outrage.