The September 2017 issue of Kadokawa’s Monthly Asuka magazine has announced that Hotaru Odagiri’s new manga series will launch in the October 2017 issue on August 24, 2017. The manga is titled Shinomiya-kun ni Wake ga Aru (Shinomiya Has a Reason). The manga will feature on the cover of the October 2017 issue, and the first chapter will have a color opening page.
In the story, Sora is the youngest child, raised among all male siblings, and is doted upon. But Sora (and the rest of the brothers) have a secret that they can’t tell anyone.