Otoi launched the manga in Kadokawa’s Bessatsu Dragon Age magazine in 2018, and it published the second volume on June 8.
Otoi began the spinoff series Wakabayashi-kun ga Nekasete Kurenai in Futabasha’s Manga Action magazine in 2015 and ended it in January 2018.
The January 2020 issue of Kadokawa’s Monthly Comic Beam magazine revealed on Thursday that Rekomaru Otoi will end the Sono Toki no Kanojo ga Ima no Tsuma Desu (My Girlfriend Back Then is Now My Wife) manga in the magazine’s next issue on January 11.
The Ojisan to Yōjo Marshmallow (Ojisan and Little Girl Marshmallow) sequel launched in March 2018, and Ichijinsha released the first compiled book volume this past March.