Tada, Kimi o Aishiteru

Heavenly Forest is a 2006 Japanese romance and drama film based on the novel Renai Shashin: Mō Hitotsu no Monogatari written by Takuji Ichikawa. It was also released as a manga. The film was directed by Takehiko Shinjo, and focuses on the relationship that evolves between a photographer named Makoto, and two of his female university classmates, Shizuru and Miyuki.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.