The first 2018 issue of Shueisha's Jump Giga magazine announced on Friday that novelist NisiOisin (Monogatari Series, Jūni Taisen, Medaka Box) is writing the original story for a new 52-page one-shot manga for the next issue on December 29. Yūji Iwasaki is drawing the manga, titled Shōnen Hō no Koro.

NisiOisin and Akira Akatsuki ended their Shōnen Shōjo (roughly translated, "Illness Boy, Illness Girl") manga on March 4. Yō Asami's manga adaptation of NisiOisin's Okitegami Kyōko no Bibōroku (The Notebook of Kyōko Okitegami) novels ended its "first season" on March 6. Osamu Mitsutani's manga adaptation of writer NisiOisin's Himeiden novel will end on December 6.