Kose Yukina is a female student living in the nature-rich city of Mizusumi.

Her parents disappeared when she was a child, and she was raised by her maternal grandparents.

People often made fun of her situation, and when she pushed back, some began to label her a delinquent; however, she didn’t let it bother her and spent her days happily with her close friends.

Her classmate, Himi Otoha, who’s constantly closing the distance between them; her junior, Haruhana Akari, who looks up to Yukina; and her two childhood friends, Yuma Hiro, a cool and dependable senior. And then there’s her music teacher, Misumi Ryoko, who’s looked after her since she was little.

Although their personalities and backgrounds varied widely, they were irreplaceable friends to Yukina.

As the hustle and bustle of the new fiscal year begins to settle down, and the late-blooming cherry blossoms start to color the landscape.

Selected to perform the “Miko Dance” at Takamiwa Shrine in the city, Yukina and her friends were practicing hard in preparation for the festival. Just as they were convinced they were about to create another wonderful memory, a disturbing rumor suddenly reached them.

It was a “plan to secure new power sources” that involved large-scale deforestation.

Suspicious of the opaque plan being pushed through by force, Yukina and the others decide to investigate on their own, but the more they learn, the more they feel something is wrong.

Yukina and her friends decide to take a stand to demand a review of the plan, but what awaits them is a lewd trap set by a group of despicable men...