Wikipedia
Shin'ai
"" is the 19th single by Japanese singer and voice actress Nana Mizuki, which was released on January 21, 2009, her twenty-ninth birthday, by King Records bearing the catalog number KICM-1270. composed, arranged, and produced by members of Elements Garden, Miki Watabe, Yōhei Sugita, Hibiki, Sayuri, and Nishi-ken. The single reached number 2 in Japan's Oricon weekly singles charts for the week of February 1, 2009.