Higashide was formerly an in-house writer for the eroge companies Will and Propeller. He wrote scenarios for several visual novels:

Ayakashibito (2005)

Bullet Butlers (2007)

Chrono Belt ~Ayakashibito & Bullet Butlers Crossover Disc~ (2008)

Evolimit (2010)

Tokyo Babel (2012)

He also wrote scenario "Soukou Akki Muramasa: The Movie" for visual novel Soukou Akki Muramasa: Janen Hen created by Nitroplus.