Mone Kamishiraishi plays heroine Aoi Nishimori in the film, while Yōsuke Sugino plays Shūsei Kugayama.
New to the story is Reien Kugayama, Shūsei’s cousin, played by Ryūsei Yokohama.
Keita Machida will also star in the film as the character Sōju Kugayama, Shūsei’s older brother.
The manga previously inspired a live-action film starring Ayame Gōriki (Black Butler, Gatchaman, Mirai Nikki- Another: World) as Aoi and Kento Yamazaki (Kyō, Koi wo Hajimemasu) as love-interest Shūsei in April 2014.