Kaiu Shirai debuted in 2015 with Ashley Gate no Yukue on the
Shonen Jump+ website. Shirai first worked with Posuka Demizu
on the two-shot Poppy no Negai, which was released in
Posuka Demizu debuted as a manga artist with the 2013 CoroCoro series Oreca Montser Bouken Retsuden. A collection of illustrations, The Art of Posuka Demizu, was released in 2016 by PIE International.