The anime series adapts Satoru Yamaguchi's romantic comedy light novel, also known by its short name Hamefura, which she began publishing in July 2014 on the Shousetsuka ni Narou website. Ichijinsha began publishing the novel with illustrations by Nami Hidaka in August 2015 and shipped the 11th volume on August 20. Hamefura has a cumulative 5 million copies of its volumes in print.
J-Novel Club licensed the light novel in English in September 2018 and released the ninth volume digitally on July 1. Seven Seas Entertainment is publishing the manga and shipped the eighth volume on July 6.
The first anime season produced by Silver Link. aired in 12 episodes last Spring. The second season premieres on July 3. Crunchyroll simulcast both seasons with subtitles and began streaming an English dub for the second season on August 27.