Yū Hayashi is a Japanese voice actor and singer from Kanagawa Prefecture attached to Ken Production. Formerly a child actor attached to Gekidan Himawari, he mainly specializes in dubbing roles. He is vocalist of Screen Mode, a band signed with Lantis.

Big Order is a Japanese manga series written and illustrated by Sakae Esuno. It was serialized in Kadokawa Shoten's Shōnen Ace magazine between the November 2011 and September 2016 issues. The manga is licensed in North America by Yen Press. An original video animation episode by Asread was released on October 3, 2015. A 10-episode anime television series adaptation aired in Japan between April and June 2016.