The narrative revolves around a character named kudou who receives a note from his deceased friend haruki with the words "i give you my child, kiki." in order to provide a stable home for kiki, kudou asks fusako, whom he met that day, to marry him. this story explores themes of family and adulthood in modern society.
Otona no Zukan Kaiteiban has been published in English as Adults' Picture Book: New Edition by Yen Press since March 19, 2024.