Someday/Boys & Girls (stylized as Someday/Boys♥Girls) is the final single of Koda Kumi's 12 Single Collection and overall thirtieth single. Unlike the majority of singles in the collection, this single is not limited to 50,000 copies. The single charted at No. 3 on Oricon and charted for nine weeks. Information Someday/Boys♥Girls is the final single in Japanese singer-songwriter Koda Kumi's 12 Singles Collection. It was only one of three in the collection to not be limited to 50,000 and, due to this, sold over 89,413 copies. Each single in the 12 Singles Collection had unique cover art based on certain cultures in various countries. The back cover of each single was a piece to a puzzle, which could only be completed by purchasing all twelve singles. The same was done for the obi strips, which contained a full image when arranged together in order. However, the obi strip image was omitted on the Hong Kong versions. The a-side, "Someday", was used as the theme song for the third season of Shin Kyoto Meikyuu Annai (新・京都迷宮案内 / The New Guide to the Labyrinth of Kyoto). The song is the last song in the story-line music videos, which brings the stories from "Candy," "you," "feel" and "Lies" to a close. "Boys♥Girls" was used as the theme for the 2006 movie called Waters (known in Japan as ウォーターズ / Uoutaazu) – a romantic comedy that revolves around the story of Japanese men working at a host club. The movie features actors Shun Oguri, Toshinobu Matsuo, Takamasa Suga, Shingo Katsurayama, Yusuke Kirishima, Hiroyuki Hirayama, Ryoji Morimoto, Hitomi Manaka, Riko Narumi and Yoshio Harada. Boys♥Girls: Theme of Waters Waters was released on March 11, 2006, under the Gaga Corporation and produced by Yu Hirose and Masashi Yagi. I It featured several well-known actors, including Shun Oguri as Ryohei, Toshinobu Matsuo as Naoto and Riko Narumi as Chika. It was directed by Ryo Nishimura and produced by Yu Hirose and Masashi Yagi. Plot Waters focuses on seven young, attractive men in need of money, who audition for host positions at a bar called Dog Days. However, "hosts" at the bar have the job of entertaining female customers by flirting with them in hopes that they spend more money on alcohol. Each host came from a different background, including a street performer and a banker. The drama in the film begins when they discover the bar's manager