Mari Hayama is a songwriter, a broadcast script writer, a scenario writer and a playwright.
After working as a copywriter, she worked on many products as a songwriter. Mari Hayama has also done many other creative works such as broadcasting script writing, opera script writing and novel writing.
NHK Minna no Uta ”Okashi no Birthday Party”
NHK Minna no Uta ”Crab Dance” ”Honey Bees” ”Circus of Dolphins” etc.