Ihara Tomoya is a third-year student at Kyoto Fushimi High School and a member of the Kyoto Fushimi High Bicycle Club. He is a sprinter, and functions as a minor background character who drops out of the 41st Summer Inter High on the second day along with fellow sprinter Yamaguchi.
Ihara has mid-length brown hair that reaches his chin and is parted in the middle that exposes his forehead and thin, arched eyebrows. His eyes are rather small compared to the rest of his face.
Ihara previously was happy to welcome anyone into Kyoto Fushimi's cycling club, approaching newcomers with friendliness, but seemed quick to anger. He took offense to any perceived rudeness towards himself, as a third-year. Ihara values respect towards those normally in a socially higher position, as he didn't want Midousuji to order their captain, Ishigaki, around either, and became extremely angry about it. Although he disliked Midousuji's direction of the club, referring to Ishigaki as Ishiyan against orders when their new ace wasn't listening, he later followed orders at the Inter High and remained in the background, showing little emotion.
In Ishigaki's Spare Bike, Ihara is shown to have a jovial, friendly demeanor, and he's quick to become close to Tsuji and Ishigaki. Notably, it's shown that he was the one to give Ishigaki the nickname of Ishiyan.