Toragaame (Tora's rain)' is a kigo (season word) for haiku that came from the sympathy of the people in the following generations with Torajo's sorrow that was reflected in the rain in May 28 of the old lunar calendar.
俳句の季語に「虎が雨（とらがあめ）」という言葉があるが、旧暦の5月28日に降る雨に後世の人びとが虎女の悲しみを重ねたものである。