<P> Mao Inoue, who previously played the lead Makino Tsukushi in Hana Yori Dango, was chosen to play Mayu in this film, starring alongside actor Okada Masaki . </P> <P> The filming of the film started in March 2009, once lead actress Mao Inoue had graduated from Meiji University . </P> <P> The film's 90 second trailer was first posted on the film's official website on 1 September 2009 . </P> <P> The theme song for this film is I Will Fall in Love with You (僕 は 君 に 恋 を する, Boku wa kimi ni koi o suru). It was sung by Japanese pop singer Ken Hirai, and was produced by DefStar Records . </P>

I give my first love to you quotes