[4][5] Following the magazine's demise, Wombs continued to be published online, and the author took five years to deliver the fifth and final volume.
[7][8] From 2013 to 2015 she published a new series, Rafnas, in the magazine Monthly Action from Futabasha, which was in turn part of the jury's selection for the manga category.
[13] In 2021 the Wombs series was translated and published in French by Akata [fr] and was met with a positive reception, with critics noting that the manga renewed the themes of science fiction.
[14][15][16][17][18] Yumiko Shirai creates her sketches on paper before finalising them using graphics software such as Painter, Photoshop[19] and Clip Studio Paint.
Shirai said she was influenced by Yoshikazu Yasuhiko's manga Arion, but also by authors such as Moto Hagio, Yumiko Oshima and Mutsumi Hagiiwa.