Based on a comedy romance manga series written by Hiroshi Noda and illustrated by Takahiro Wakamatsu. It was serialized in Kodansha's Shounen manga magazine Monthly Shounen Magazine from October 2019 to November 2022, and has been collected in six tankobon volumes.
Koi wa Sekai Seifuku no Ato de was released on Blu-ray in two volumes from July 13, 2022 to August 3, 2022.