"Growing of My Heart" is a song recorded by Japanese singer and songwriter Mai Kuraki, which she released as the lead single from her sixth album, Diamond Wave (2006). The song was written by Kuraki herself, Aika Ohno and Takeshi Hayama and released on November 9, 2005. "Growing of My Heart" was a commercial success, reaching number seven in Japan and selling approximately 62,000 copies. The song served as the sixteenth opening theme to the Japanese television anime series, Case Closed. Track listing Charts Weekly charts Monthly charts Certification and sales |- ! scope="row"| Japan (RIAJ) | | 62,299 |- |} Release history References 2005 singles 2005 songs Mai Kuraki songs Giza Studio singles Case Closed songs Songs written by Aika Ohno Songs written by Mai Kuraki Song recordings produced by Daiko Nagato