One In A Billion

 is a collaboration single by May'n × Wake Up, Girls!. It was released on August 9, 2017, and peaked at #18 on the Oricon single chart.

Single Information
The lead track One In A Billion was used as the opening theme for the anime Restaurant to Another World.
 * Catalog Number:
 * VTCL-35260 (Regular Edition)
 * VTZL-131 (Limited Edition)
 * Lyrics: Fujibayashi Shoko
 * Composition: Watanabe Miki
 * Arrangement: R・O・N

CD

 * 1) One In A Billion
 * 2) Ousama no Cadenza (王様のカデンツァ)
 * 3) One In A Billion (Inst)
 * 4) Ousama no Cadenza (Inst)

Limited Edition BR

 * 1) One In A Billion (Music Video)
 * 2) One In A Billion (Dance Video)