17sai Tabidachi no Futari is a Japanese movie directed by Shinichiro Sawai. It was released by Toei in Japan on July 28, 2003.
Pop singer Rika Ishikawa stars as Maiko, a girl who was given up by her father at the age of three and has lived in a foster home ever since. One day, her foster brother goes missing and she’s given the task of finding him.
She’s contacted by a girl named Lisa (Miki Fujimoto) who the boy had been following around recently. Soon, the two girls strike up a friendship while they each deal with issues in their lives.