Mayonaka wa Junketsu

 is Japanese singer Ringo Sheena's 6th single and it was released on March 27, 2001 by Toshiba EMI / Virgin Music.
Background.
In this single, Sheena canceled her partnership with Seiji Kameda, with whom she had arranged her songs up to that point, and asked musicians of various genres to arrange her songs. She arranged three songs in a "night, daytime, and a morning" order, according to the title, and she showed the reading of these song titles by writing katakana.
All players of each song were named "- Paradise Orchestra" on "Mayonaka wa Junketsu" which is the title tune of this single.
 is a Ska band, and is a big band, and is the trio of a pianist, a bassist, a drummer, with accordionist coba.
Sheena intended to record "Mayonaka wa Junketsu" and "Aisaika no Chōshoku" on the third album "Kalk Samen Kuri no Hana".
However, she judged that they weren’t suitable for the view of the world of the album while she was producing that, and she shelved the adoption of the two songs for the album.
The literal translation of song titles is slightly different from the official English title.
The song was covered by Mino Kabasawa on her piano cover album "Piano Pure: Memory of 2001", by Rieko Miura, Atsuko Kurusu and Saki Kamiryo on the NTV variety show "The Yoru mo Hippare: Aki no Special" on September 22, 2001 and by Max on the NTV variety show "The Seiya mo Hippare: 2001 Christmas Special" on December 15, 2001.
Music video.
"Mayonaka wa Junketsu" was accompanied by an animated music video. Originally, the music video was filmed by live action. The story was that a mysterious woman fights with a baldheaded leader of an evil secret society. Sheena played the woman and Masato Minagawa, a keyboard player of her band, played the enemy's leader.
However, Sheena's pregnancy came to light while filming, so the video was hurriedly changed into animation. The story remained as it was and the character design was also modeled on Sheena and Minagawa. Her pet cat "Goethe" also appears in the music video as a cyborg cat. The heroine was named according to the anagram of the song title.