"Haru Machibito"/"Camellia" is Hitomi Shimatani's 21st single under Avex Trax. It was released on March 15, 2006. The single peaked at #19 on the Oricon charts and has sold an amount of 12,023 copies. "Haru Machibito" is a midtempo ballad and its title means "She who waits for the spring". "Camellia" is an uplifting upbeat song, named after the flower, and partially based on Mozart's Rondo Alla Turca and Eine kleine Nachtmusik. "Sky High" was featured in the Heart & Symphony album that was released in 2005. It is an upbeat song with some hints of classical genres and techno.