Itsuomi Nagi is a central character in the series "Yubisaki to Renren." Known for his calm and composed demeanor, Itsuomi is a college student who becomes intrigued by the world of sign language after meeting Yuki, a hearing-impaired girl. His character is pivotal as he bridges the communication gap between Yuki and the hearing world, often taking the role of a translator and advocate for better understanding. His empathetic nature and willingness to learn about Yuki's world highlight his deepening relationship with her, making him an essential figure in her life and the series.