東出 祐一郎

Higashide Yuuichirou is a Japanese novelist and scriptwriter. He was an employee of WillPlus and Propeller, but retired since 2011. Other notable works include:

Games:
• Fate/Grand Order
• Fate/Samurai Remnant

Anime:
• Keishichou Tokumubu Tokushu Kyouakuhan Taisakushitsu Dainanaka: Tokunana

Novel:
• Kemonogari
• Fate/Apocrypha
• Date a Bullet