Miyuhan, also known by the stage name Mewhan, is a Japanese singer-songwriter, lyricist, composer, and voice actress affiliated with the agency High Speed Boys. She was born on January 31, 1992, in Kagawa Prefecture, Japan. She began her full-scale music activities in 2015 after moving to Tokyo and is known for describing herself as a "communication disorder singer-songwriter". Her work is not limited to music, as she is also active as an illustrator, voice actress, and multifaceted artist.

Miyuhan's career is notable for the synergy between her music and voice acting. She gained significant attention for her work on the 2017 hit TV anime Kemono Friends. For this series, she not only performed the ending theme song Boku no Friend but also made her voice acting debut as the character Sand Cat. This dual role, where she both contributed musically and voiced a character, is a hallmark of her early career in anime.

Her discography includes several mini-albums. She released her first mini-album, Self Schema, in February 2017, which marked her major label debut. This was followed by her second mini-album, Risky Shift, released in September 2017. As a singer-songwriter, she writes the lyrics and composes the music for many of her own songs. Beyond her own performances, Miyuhan is a prolific songwriter for other artists. A prominent example is her frequent collaboration with the popular singer Ado, for whom she has written and composed multiple songs, including tracks on the albums Kyogen and Zanmu.

In addition to her work in Kemono Friends, Miyuhan's involvement in anime and games often centers on her musical contributions. She performed the theme song for the 2019 TV anime Super Shiro and for the anime Hachigatsu no Cinderella Nine. Her work in the gaming world includes contributing theme songs. For the 2022 game Memento Mori, she performed the song "Passionate Eda" for the character Sonya, with the music video featuring narration by Sonya's voice actress. Her voice acting roles, however, are less numerous than her musical credits. While she voiced the sand cat in Kemono Friends, another notable voice role is the bat character Namichisui Koumori in the Kemono Friends franchise. The character Shikabane in the series Aggretsuko is also listed as a role she has played. Her career is characterized by strong recurring collaborations, not only with Ado but also with other voice actors and musicians involved in projects like Kemono Friends, such as Yuuka Ozaki and Aina Aiba.