Yoru no Picnic (2006)

Description:

A group of high school students embark on their annual walk, which consists of the students walking 80 kilometers in 24 hours. During their outing, senior student Takako Koda (Mikako Tabe) strikes up the courage to befriend classmate You Nishiwaki (Takuya Ishida). The other students believe they may have feelings for each other...