 Following fellow member Shim Eun-jin, Yoon ended her six-year activities as a member of Baby V.O.X in July 2005 when her contract with DR Entertainment expired.In 2006, Yoon made her acting debut in romantic comedy "Princess Hours", where she played an ordinary girl who becomes the crown princess due to an arranged marriage to the crown prince.Initially, fans of the "Goong" manhwa questioned her acting ability, and sent out petitions against Yoon as the lead role, requesting her to be replaced.