Shosei Ohira is a Japanese voice actor and entertainer, born on April 13, 2000, in Kyoto Prefecture. He is a member of the popular Japanese boy band JO1, having risen to prominence through the survival reality show Produce 101 Japan. While his career is primarily rooted in music and live-action performance as an idol, he has also taken on roles in anime, marking his presence in the voice acting industry.

Ohira's filmography includes two notable voice acting credits. In the 2020 animated film Poupelle of Chimney Town, he lent his voice to the character Dennis. He subsequently voiced the character Masaki Azuma in the 2022 television anime series Fanfare of Adolescence, an original sports anime about students at a horse racing school. These roles represent his primary work within the anime medium.

Beyond voice acting, Ohira is actively involved in music, having contributed lyrics to several JO1 songs, including YOLO-konde, NEWSmile, and Bon Voyage. He has also composed and written lyrics for his own solo work, such as the song Melak. His career extends to live-action acting, with appearances in dramas like Short Program and The Overprotective Young Master's Pampered Marriage, as well as the live-action film Out. In recognition of his ties to his home region, he has been appointed as a Culture and Tourism Ambassador for Kyoto Prefecture.