Siam Shade (stylized as SIAM SHADE) was a five-piece Japanese rock band, which broke onto the visual kei scene in the early 1990s. They enjoyed a decade of relative popularity before disbanding in early 2002. Outside Japan, Siam Shade is best known for "1/3 no Junjou na Kanjou" (1/3の純情な感情), one of the many ending themes from the Rurouni Kenshin anime.