Yumeha Takahashi is a Japanese voice actress, singer, and writer who performs under the stage name Yumeha Kouda. Born in Tokyo on April 18, 1992, she began her career after joining the Production Ace Acting Institute. Her professional debut came in 2009 with the role of Di-air in the anime series Kiddy Girl-AND, a part she performed under her real name. For several years, she was affiliated with the agency Production Ace before becoming a freelancer at the end of 2016.

Following her debut, Takahashi built a career with a variety of supporting roles in anime. Her voice credits from this period include characters such as Fuzuki Matsuura in Isuca, Sumire Mikazuki in Triage X, Mayu Nishikawa in Haruchika, and a young girl in My Love Story. She also appeared in the Fate/kaleid liner Prisma Illya series, contributing not only her voice but also performing theme songs. In 2014, she made her debut as an anime song singer with the single TWO BY TWO, followed by Happening Diary / Wishing diary in 2015, both released under the Lantis label.

Beyond her voice acting and singing, Takahashi has pursued a career as a freelance writer and blogger. After leaving her agency, she began sharing insights into the voice acting profession, drawing from her personal experiences. Her activities expanded to include authoring books and writing columns, establishing a multifaceted career alongside her performance work.