Driven by an unwavering passion for becoming an idol, Yu Azuma, a young, ambitious first-year student at Joshu East High School, embarks on a journey to form an idol group. To make her dream a reality, she recruits one girl from each of her region’s four high schools, located to the north, east, south and west, and soon finds her fellow group members. Joining Yu is Ranko Kashima, a sophisticated second-year student at Holy Teneritas Southern Girls’ Academy, with a distinctive curly hairstyle and admiration for Madame Butterfly; Kurumi Taiga, a student at West Tech Vocational High School, who wears cute, oversized jackets with long sleeves and dreams of winning the championship at a robotics competition; and, Mika Kamei, a student who also hails from Joshu North High School, known for being a kind-hearted girl and for her dedication to volunteering. With the help of Shinji Kudo, Yu's "collaborator" and confidante, these four young girls set off on the road to stardom. But the journey hides unexpected trials, rigorous demands, setbacks and pressures, threatening to undo all that Yu has worked so hard for.

Episode 13 of Yomigaeru Sora: Rescue Wings, released as a DVD special. Takes place before the events in the series.

i☆Ris has reached the 10th anniversary of their debut and is enjoying smooth sailing, but there was a thought that came to the minds of the girls. "What will happen to us in the next 10 years?" On the day of a live concert, a mysterious talking white squirrel suddenly appears from a T-shirt of goods delivered to i☆Ris' dressing room! Suddenly, they are enveloped in a dazzling light, and what spreads out before their eyes is a mysterious world with many big rainbows floating on it. This is Risu Risu Land, a world where you can be anything you want to be! The five of them are enjoying themselves in this fun and wonderful place, fulfilling their dreams, but they realize that there is something "missing" in this world. There is no "song" in this world. Shirorisu asks i☆Ris for help to bring back the "song".... Why did the "song" disappear? Can they bring "Song" back to this world once again? And at the end of this journey, will the girls find what they really want to be?　

Theatrical release of .