The theme of this film is the graduation trip in London. Hirasawa Yui (CV: Toyosaki Aki), the protagonist who is about to graduate, and three students in Grade 3 and 1 in Grade 2 of the Department of Light Music decided to choose a place for graduation trip when they heard the students' plans for graduation trip in the classroom. So they put forward their own destinations, and finally selected the plan of going to London put forward by Qiu Shanling (CV: Yoko Hikasa) in grade three by drawing lots. While several girls are preparing travel articles such as guidebooks, their imagination of London is also flying.
(Note: According to the time axis of the story, the Playhouse Edition of the Girl with a Soft Voice contains the content after the 22nd episode of TV animation. And #27 is # 13.5 in the plot, please choose the viewing order as needed. )