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.