Jyukai is a Japanese pop group formed in 2004 and associated with NBCUniversal Entertainment Japan LLC. Formed in the summer of 2004 and centered on vocalist Manami Watanabe, the group began live activities mainly in Osaka Prefecture. Its music is built around melodic J-pop, with emotional vocal delivery, piano textures, and guitar-driven arrangements; its songs often move between ballads and reflective mid-tempo tracks. Its official website is http://www.jyukai.jp/.
Jyukai made its major debut in 2006 with the single "Anata ga Ita Mori (あなたがいた森)," used as the ED of "Fate/Zero". After appearing at an anime convention live event in the United States in 2008, the unit went on hiatus. It released a best album in 2009. Manami Watanabe later pursued solo activities as Aimmy, while Dewa worked as a studio musician, and in 2012 Watanabe announced solo activities under the name 渡辺マナミ.
