This 1991 single features Asaka in a more mature pop-funk style, a departure from her earlier idol work.
- The A-side "Koi no Upside-Down" was written by Yoshiaki Dewa and arranged by Nobuhiko Satoh.
- The single was released on Victor Entertainment's WM Japan label.
- The B-side, "Tokimeki no Kaze," was also an original composition for this single.
Yui Asaka is a Japanese pop singer and actress from Tokyo. She rose to fame in the late 1980s as an idol singer.
Tracklist
