U-ka saegusa IN db (三枝夕夏 IN db（イン デシベル）, Saegusa Yūka in Deshiberu (in Decibel)) was a Japanese pop rock band formed in Osaka in 2002.
They're known for performing several theme songs for the Japanese anime series, Case Closed.
One of the songs, "Kimi to Yakusoku Shita Yasashii Ano Basho made", became the band's best-selling single, selling approximately 34,000 copies nationwide.
Its first hit single was "Kimi to Yakusoku Shita Yasashii Ano Basho Made", a theme song of the popular anime Detective Conan, which reached #8 in the Oricon charts.
[3] On October 21, 2009, Saegusa stated that the band would disband in January 2010.