Born 1986 in the prefecture Aichi, Horikoshi first attracted attention in the second half of 2006 when he entered Shueisha's 72th Tezuka Award for Newcomers with his one shot "Nukegara" and made it to the final six, where he gained himself an "Honorable Mention".

Various short stories in Shueisha's Akamaru JUMP followed over the years until he published his one shot "Oumagadoki Doubutsuen" in issue #2/2010 of Weekly Shounen JUMP.