With over 20 years of experience in the Japanese and international music industry, I’ve worked behind the scenes with some of the biggest names in the game. As a seasoned producer, rapper, and singer (performing under the name Neptune), I’ve ghost produced and written for major artists including The Rampage, 清水翔太 (Shota Shimizu), 三代目 J Soul Brothers, 加藤ミリヤ, as well as global stars like Bruno Mars, Shawn Mendes, and rising icons in the Japanese hip-hop scene like Ozworld, ¥ellow Bucks, JP THE WAVY, and 平井大.
I’ve collaborated with top labels such as avex, Sony Music Japan, Universal Music Japan, and Warner Music Japan, bringing professional, radio-ready quality to every project.
Currently, I’m producing original songs—both J-pop and Vocaloid-style—for the talented bilingual artist Artemis, who brings life to my female vocal tracks with a unique blend of emotion and clarity.
Whether you're looking for authentic J-pop, Japanese hip-hop, or international crossover tracks, my work blends elite-level production with cultural authenticity and commercial appeal.
