Kaya (迦夜) is a Japanese visual kei musician, a vocalist of the electro/darkwave duo Schwarz Stein,[1] and a former vocalist of the bands Meties and Isola under the alias of Hime.

In 1997, Kaya debuted under the name Hime as a vocalist of the visual kei band Meties, before later joining Isola.

When Isola disbanded in 2001, Kaya became the vocalist for the darkwave duo Schwarz Stein, produced by Mana and signed to his label Midi:Nette.

In 2017 Schwarz Stein released a 15th anniversary album of their greatest hits.

[6] Kaya covered Laputa's song "揺れながら… (Yurenagara...)" on the compilation album "CRUSH!-90’s V-Rock best hit cover songs-", and have had a friendly relationship with ex-members of Laputa.