Okajima Futari was a Japanese mystery-writing duo consisting of Inoue Izumi (井上泉) and Tokuyama Ryoichi (徳山 諄一), active from 1975 until their dissolution in 1989 after publishing Klein's Jar (クラインの壺). The pen name, meaning "Strange Pair," was inspired by the phrase Okashina Futari (おかしな二人).

Tokuyama primarily focused on creating the plots, while Inoue was responsible for the writing. Over time, Tokuyama's plots became more unrefined, which increased the workload on Inoue. By the end of their collaboration, Inoue had taken on much of the plotting as well.

(Source: MyDramaList) Edit Biography