Starting in 1995, Orito composed music for three of Leaf's games: DR2 Night Janki, Filsnown: Hikari to Koku, and Shizuku (precursor of To Heart).
Orito has composed music for all of Key's titles, though he contributed to only one track on the original soundtrack of Planetarian: The Reverie of a Little Planet.
[2] During his time at Key, Orito has provided outsourced musical composition for three games by three separate companies under VisualArt's.
He used to visit a music BBS called Unison-BBS and named his dōjin circle Unison Label after the website, which has since gone offline.
During the time he worked with Tactics and later Otherwise, Orito was also a member of a professional group of composers known as the Unison Sound Team, in which he was known as either "Gamma" (がんま, Ganma) or "Gunman" (がんまん, Ganman).