Koryu no Mimi, by Arimasa Osawa

In August 1991, Shueisha launched Jump Novel, a novel magazine published as a special issue of Weekly Shonen Jump. Its formula paired new novels by established writers with illustrations by Jump artists, and the presentation of its launch cited the duo “大沢在昌＋原哲夫”. Koryu no Mimi, Arimasa Osawa’s novel, was in all likelihood serialised there, with a colour title page credited “大沢在昌 / 原哲夫”. The novel was then published in the JUMP j BOOKS imprint, in two volumes, on 26 March 1993 and 2 December 1994. The covers are credited “illustration 原哲夫 鶴岡伸寿”, with no record of how the work was shared, and the volume 1 cover shows the same scene as the title page. A 50-unit JUMP j BOOKS telephone card also reproduces this cover.