The Bloom Garden Party is finally here. It’s the stage where everyone will “someday, surely” bloom—the goal Kaho and the others have been chasing for a whole year. This is the first step.
 
The long-awaited day has finally arrived — the day when the promise they made with the graduates will come true. It was also the last day for the 103rd-year students, on the verge of graduation, could spend with their friends as students of Hasunosora.
 
―Even so, the girls race through their “youth” with all their might. This is the story of girls who struggled to bloom, a tale of dreams made real together. 

(Source: Love Live! Hasunosora Jogakuin School Idol Club: Bloom Garden Party Site, translated)