Mone Kamishiraishi plays heroine Aoi Nishimori in the film, while Yōsuke Sugino plays Shūsei Kugayama.
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.
New to the story is Reien Kugayama, Shūsei’s cousin, played by Ryūsei Yokohama.
The staff of LDK Hitotsu Yane no Shita, “Suki” ga Futatsu (Two Loves Under One Roof), the new live-action film adaptation of Ayu Watanabe’s LDK shōjo manga, revealed on Thursday that Keita Machida (live-action Sukimasuki) will star in the film as the character Sōju Kugayama, Shūsei’s older brother.