Makoto Konno is in her last year of high school, but is having a hard time deciding what to do with her future. In between enduring the pressure of her teachers and killing time with her best friends, Makoto's life suddenly changes when she accidentally discovers that she is capable of literally leaping through time.

Toki wo Kakeru Shoujo follows Makoto as she plays around with her newfound power. However, she soon learns the hard way that every choice has a consequence, and time is a lot more complicated than it may seem.

Toki wo Kakeru Shojo is a juvenile novel written by Tsutsui Yasutaka. It became TV drama, movie, and manga several times. However, this movie is its first anime adaptation. The main character, Konno Makoto, is brighter and more easygoing than any other characters in movie or TV drama made before. At once she knows she acquires the power of "time leap." She uses it without hesitation to satisfy her own desire.

In 2006, the film won the Best Animated Film in the Sitges Film Festival. In 2007, it won the Animation of the Year during the Japan Academy Prize. During the Tokyo Anime Awards, it won the Animation of the Year and the Best Original Story/Work. The staff that worked for the film won the Director Award, the Script-writing Award, the Achievement in Art Direction, and the Character Design Award. The movie also won the Animation Grand Award, given to the year's most entertaining animated film, at the prestigious sixty-first Annual Mainichi Film Awards. It received the Grand Prize in the animation division at the 2006 Japan Media Arts Festival. The film won the Special Distinction for Feature Film at France's thirty-first Annecy International Animated Film Festival on June 16, 2007. It also won the Feature Film Award in the 11th Animation Kobe Awards in 2006.