"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.

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Quick Facts Single by Mai Kuraki, from the album Diamond Wave ...

"Growing of My Heart"
Single by Mai Kuraki
from the album Diamond Wave
B-side	"Seven Nights" "Winter*Swear"
Released	November 9, 2005 (2005-11-09)
Recorded	2005
Genre	J-pop
Label	Giza Studio
Songwriter(s)	Mai Kuraki Aika Ohno Takeshi Hayama
Mai Kuraki singles chronology
"P.S My Sunshine" (2005) "Growing of My Heart" (2005) "Best of Hero" (2006)

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"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.