Yu is known for her puns in creating radio programme titles and slang phrases (e.g., si-dan-up/"是但噏", literally "freestyle talk", as a phonetic translation of "stand-up").
[citation needed] Yu grew up at Mid-Levels on Hong Kong Island, with her parents, sister and brother.
She was invited to return to CR in 1988 as general manager, a position she held until the 2000s, when she started to gradually step out of the station's administration.
The host, along with Wong Yuk-man (another radio personality), were fired from the station and new programmes were initiated, including "On A Clear Day".
Yu was involved in a new project created jointly by Commercial Radio and the charity St. James' Settlement and funded by the Hong Kong Jockey Club, Skyhigh, which is described as a media training and creative production house exclusively for disadvantaged youth living in the Tin Shui Wai district of Hong Kong, offering training and job placement within the media industry.