In a quiet little town shrouded in mystery, life flows as gently as a babbling brook, until a group of young people set ripples spreading across its surface.
Outgoing and full of energy, Hang meets Yui, who is gentle but keeps a secret close to her heart. Their lives are as carefree and pleasant as the song of cicadas on a summer day, until the ancient Tsukuyomi Festival at the shrine reaches out like an unseen hand and pulls them into the whirlpool of fate.
As they investigate the secrets of the Tsukuyomi Festival, long-buried events come to light one by one. The mysterious old paintings in the shrine, strange runes that appear during the rituals, and a former shrine maiden who seems to have countless ties to them all make the truth ever more elusive. While restoring an old painting, Matsumoto Saki unexpectedly discovers a hidden connection between her family and the shrine. Thanks to his technological skills, Haruto solves the puzzles behind the shrine's mechanisms. Nana's taiko drumming, along with the involvement of Fujii Takuma and Miyazawa Midori, makes this adventure all the more thrilling.
In this distinctly Japanese town, a seaside train winds between the cherry trees and the shrine. Amid the summer cicadas' song and the caress of the Wandering Wind, their youthful stories weave together into a moving melody. But what unexpected ending awaits them?
