5 Centimeters Per Second (2007)

Following their graduation from elementary school, Takaki and Akari find themselves estranged, their connection strained by time and their new lives. However, Takaki embarks on a journey to reunite with her, triggering a series of interconnected stories as he navigates cruel winters, a discontent life, and the burdens of adulthood, while his search for love is tested at every turn he takes.