Cherry blossoms are beautiful, and so is youth. It is a wonderful thing to meet each other in this splendid cherry blossom season.
This begins the story of Takeo Goda, a first-year high school student, and the gentle girl Yamato Rinko, as well as the Takeo's childhood friend - Sunakawa Makoto, and Rinko's best friend - Junna Yuki.
The timeline of this article is basically the same as the anime timeline.
Agamonogatari is a very good anime, highly recommended.
Purpose: some stories of youth