Real name: Youhei Kimura (木村洋平)

Youhei is one of the composers belonging to IOSYS, a Japanese musical ensemble and doujin circle from Sapporo, Japan, which is primarily known for producing remixes of music from the Touhou Project series of doujin games.

While most of Youhei's works can be categorized as denpa music, he is a multifacetic and versatile composer who can arrange a lot of styles, having dabbled in a huge amount of genres. His instrumental works also include Glitch Hop, Drum and Bass, Happy and UK Hardcore, Jazz, Classical Piano, Rock, Metal among others.