Senjintachi tono taidan
By: Ōishi Hisao cho
Publisher: Fūeisha
Published: 2016
Place of publication: Oosaka
Language: jpn
Number of pages: 512
ISBN-13: 9784434223907
Notes: "『本人』に、真相を聞きたい!龍馬、西郷、信長、ひばり…あの世の偉人達へ突撃取材!時空を超えた“終活”ファンタジー小説。"  -- from the website.