I've known actress Hisako Manda（萬田久子）but not so much for her thespian work since I haven't really been watching dramas in Japan for many years now. Actually, it's been more for her work in commercials and variety shows, and so I'm a tad surprised that she hasn't also been identified as a tarento in her J-Wiki article. Born in Osaka, she was also the Japanese participant in the Miss Universe contest in 1978 when she was just around 20 years of age.
One thing that I didn't know about Manda is that she was also doing some singing work. Mind you, she only released one single and one album exactly, and both came out in 1981. This article isn't about the single but it is about one of the tracks from her album "Natsu no Wakare"（夏の別れ...Summer Breakups）, "Koi Suru Tsumori ni Nareba" (If You're Going to Fall in Love).
Manda does have that nice smoky voice going for her but not a lot of range...and indeed, singer was also an occupation that wasn't listed in her J-Wiki profile. However, I can't complain too much about Hiroshi Yasukawa's（安川ひろし）arrangement of Juichi Sase's（佐瀬寿一）melody paired with Takehiro Nakajima's（中島丈博）lyrics. It sounds like Yasukawa may have had some inspiration from the tracks in Quincy Jones' "The Dude" album from the same year.