Yozora announces a contest for students to design their own dress for Romance Kiss and wear it in a special performance. While exploring town for ideas, Yume, Rola, and Koharu come across both Yozora and M4's Asahi, who are both revealed to be Mahiru's siblings.
Miyu Tomita
Yume Nijino (voice)
Ayaka Asai
Rola Sakuraba (voice)
Natsumi Murakami
Ako Saotome (voice)
Yume Miyamoto
Mahiru Kasumi (voice)
Minami Tsuda
Hime Shiratori (voice)
Sumire Morohoshi
Tsubasa Kisaragi (voice)
Azusa Tadokoro
Yuzu Nikaidou (voice)
Ayaka Ohashi
Yozora Kasumi (voice)
Reina Ueda
Lily Shirogane (voice)
Megumi Yamaguchi
Koharu Nanakura (voice)
Yoko Hikasa
Elza Forte (voice)
Nako Eguchi
Kirara Hanazono (voice)
Natsumi Fujiwara
Rei Kizaki (voice)
Kaori Maeda
Aria Futaba (voice)
Taku Yashiro
Subaru Yuuki (voice)
Yuto Uemura
Nozomu Igarashi (voice)
Shun Horie
Asahi Kasumi (voice)
Arthur Lounsbery
Kanata Kira (voice)
Daisuke Hirakawa
Hikaru Moroboshi (voice)
Aoi Koga
Yuri Ashida (voice)
Akemi Kanda
Anna Hibiki (voice)
Kenta Matsumoto
Dave Sato (voice)
Kazuyuki Okitsu
Tamagoro Miwa (voice)
Sena Horigoshi
Yume Nijino (Singing Voice) (voice)
Rie Fujishiro
Rola Sakuraba / Rei Kizaki (Singing Voice) (voice)
Risa Aizawa
Elza Forte (Singing Voice) (voice)
Miki Mirai
Ako Saotome (Singing Voice) (voice)
Ruka Endou
Hime Shiratori / Aria Futaba (Singing Voice) (voice)
Nanase Matsuoka
Koharu Nanakura / Tsubasa Kisaragi / Lily Shirogane (Singing Voice) (voice)
Kana Hoshizaki
Yuzu Nikaidou / Mahiru Kasumi (Singing Voice) (voice)
Miho Amane
Yozora Kasumi / Kirara Hanazono (Singing Voice) (voice)
