Kumo no KaidanKumo no Kaidan is a 1982 Japanese novel by Junichi Watanabe. The story has been adapted for television three times.1983 adaptationThe 1983 television adaptation was titled Kumo no Kaidan: Nise Ishi o Meguru Onna Futari.2006 adaptationThe 2006 adaptation is a Korean show titled Cloud's Stairs.2013 adaptationThe latest adaptation stars Hiroki Hasegawa as the main character. This series began on 17 April 2013.