 In this role he discovered and published Kōbō Abe, who subsequently joined Haniya's avant-garde group "Yoru no Kai" (Night Group).Haniya was a prolific writer; after his death, Kodansha published his complete works in a set of 19 volumes.He won the 6th Tanizaki Prize in 1970 for his collection "Black Horses in the Darkness and other stories".