Miho Masaka is a Japanese voice actress from Akita Prefecture, born on March 26. Her career has been marked by a series of stage name changes, with her performance credits listed under several different names over time. She began her career under the name Nozomi Nakano and later also used the name Miho Nakano before transitioning to Miho Masaka in October 2014. As of January 2021, she began working under the name Miho Sakurazaka. Her early training and affiliations included periods with talent agencies such as Goku, Across Entertainment, and Just Production.

Her body of work as a voice actor encompasses roles in anime television series, original video animations, video games, and stage performances. Her most widely recognized role is that of Ibara Shiozaki, a student in Class 1-B with a Vine Quirk, in the popular long-running anime series My Hero Academia. She was cast in this role for the anime's second season in 2017 and continued to voice the character in subsequent seasons and related media, including original net animations and video games based on the franchise.

Beyond this prominent role, her career includes a wide range of supporting and guest characters. In television anime, her credits include roles such as Koro-ane in Love Rice, the young Emilio and Krom in Endride, Bunta in FLCL Alternative, and a young Ryang-Ha Song in Love of Kill. She has also contributed to other projects, including voicing Fu Shou in Sōten Kōro, Momiji Oga in Shinkansen Henkei Robo Shinkalion the Animation, and providing the voice of the Dungeon in My Unique Skill Makes Me OP even at Level 1. Her film work includes a role in the animated movie Kuroko's Basketball The Movie LAST GAME.

In addition to her work in animation, Miho Masaka has been active in other areas of voice performance. Her experience includes narration work, such as for the BS-TBS program "校歌を訪ねて" (In Search of School Songs). She has also participated in stage productions and provided voices for motion comics, including adaptations of Ultraman and The Rose of Versailles. Her skills outside of acting include composing melodies and calligraphy, in which she holds a black belt rank.